jQuery.namespace = function() {
    var a=arguments, o=null, i, j, d;
    for (i=0; i<a.length; i=i+1) {
        d=a[i].split(".");
        o=window;
        for (j=0; j<d.length; j=j+1) {
            o[d[j]]=o[d[j]] || {};
            o=o[d[j]];
        }
    }
    return o;
};

$.extend({
    keys: function(obj) {
            var a = [];
            $.each(obj, function(k) { a.push(k) });
            return a;
        }
    });

$.fn.extend({
    serializePost: function() {
            /*
              Serialize a form into a data object that we can submit back to the server
            */
        var a = this.serializeArray();
        var s = {};

        function add( key, value ){
            if(s[key] === undefined) {
                s[key] = value;
            }
            else {
                if(typeof s[key] === 'object') {
                    s[key][s[key].length] = value;
                }
                else {
                    s[key] = [s[key], value];
                }
            }
        };

        // If an array was passed in, assume that it is an array
        // of form elements
        if ( jQuery.isArray(a) || a.jquery ) {
            // Serialize the form elements
            jQuery.each( a, function(){
                add( this.name, this.value );
            });
        }
        // Otherwise, assume that it's an object of key/value pairs
        else {
            // Serialize the key/values
            for ( var j in a )
                // If the value is an array then the key names need to be repeated
                if ( jQuery.isArray(a[j]) )
                    jQuery.each( a[j], function(){
                        add( j, this );
                    });
                else
                    add( j, jQuery.isFunction(a[j]) ? a[j]() : a[j] );
        }
        // Return the resulting serialization
        return s
    }
});

jQuery.fn.vAlign = function() {
    return this.each(function(i) {
            var h = $(this).height();
            var oh = $(this).outerHeight();
            var mt = (h + (oh - h)) / 2;
            $(this).css("margin-top", "-" + mt + "px");
            $(this).css("top", "50%");
            $(this).css("position", "absolute");
    });
};

jQuery.fn.hAlign = function() {
    return this.each(function(i){
        var w = $(this).width();
        var ow = $(this).outerWidth();
        var ml = (w + (ow - w)) / 2;
        $(this).css("margin-left", "-" + ml + "px");
        $(this).css("left", "50%");
        $(this).css("position", "absolute");
        });
};

jQuery.fn.idle = function(time) {
    return this.each(function(i){
            var o = $(this);
            o.queue(function() {
                    setTimeout(function() {
                            o.dequeue();
                        }, time);
                });
        });
};

jQuery.chain = function(f1, f2) {
    return (function() {
            var scope = this;
            if(f1) {
                scope = f1.apply(scope, arguments);
            }
            f2.apply(scope, arguments);
        });
};

$(document).ready(function() {
        // Give fosus to the last form element on the page with the "focus" class.
        $("input.focus:last").focus();

        $('form').each(function() {
                var form = $(this);
                form.find(".defaultText").each(function() {
                        var el = $(this);
                        el.attr("default_text", this.title ? this.title : '');
                        this.title = '';
                        el.focus(function() {
                                if ($(this).val() == $(this).attr("default_text")) {
                                    $(this).removeClass("defaultTextActive");
                                    $(this).val("");
                                }
                            });
                        el.blur(function() {
                                if ($(this).val() == "") {
                                    $(this).addClass("defaultTextActive");
                                    $(this).val($(this).attr("default_text"));
                                }
                            });
                        el.blur();
                    });

                form.bind('submit', function() {
                        var form = $(this);
                        form.find(".defaultText").each(function() {
                                if($(this).val() == $(this).attr("default_text")) {
                                    $(this).val("");
                                }
                            });
                    });
            });

        $('form.disable_multiple_submit').bind('submit', function(e) {
                var form = $(this);
                if(form.attr("submitted") == "true") {
                    e.preventDefault();
                    e.stopPropagation();
                }
                else {
                    form.attr("submitted", "true");
                    form.find("input[type=submit]").addClass("submitted_form").addClass("tips_enabled").addClass("tip_busy-form").tipBubble();
                }
            });

        if($('form.prevent_lost_work').length > 0) {
            var culprits = {}
            var set_culprit_status = function(form, field, dirty) {
                if(field != null) {
                    if(dirty) {
                        culprits[field] = true;
                    }
                    else {
                        delete culprits[field];
                    }
                }
                else {
                    if(!dirty) {
                        culprits = {};
                    }
                }

                if($.keys(culprits).length > 0) {
                    form.addClass("prevent_lost_work_enabled");
                    window.onbeforeunload = function() {
                        return "It appears that you have made changes that have not yet been saved.";
                    }
                }
                else {
                    form.removeClass("prevent_lost_work_enabled");
                    window.onbeforeunload = undefined;
                }
            }

            /*
            $(document).unload(function(e) {
                var lose_work = true;
                if($("form.prevent_lost_work_enabled").length > 0 && $("form.prevent_lost_work_disabled").length == 0) {
                    lose_work = confirm(
                    if(lose_work === false) {
                        e.preventDefault();
                        e.stopPropagation();
                    }
                }
                return lose_work;
            };
            */

            if(typeof(tinyMCE) != "undefined" && tinyMCE.settings) {
                var setupPreventLostWork = function() {
                    $.each(tinyMCE.editors, function() {
                            var editor = this;
                            editor.onChange.add(function(e) {
                                    var parent_form = $(this.getContainer()).parents("form");
                                    if(parent_form.hasClass("prevent_lost_work")) {
                                        if(this.isDirty()) {
                                            set_culprit_status(parent_form, this.id, true);
                                        }
                                        else {
                                            set_culprit_status(parent_form, this.id, false);
                                        }
                                    }
                                });
                        });
                    return this;
                };
                tinyMCE.settings.oninit = jQuery.chain(tinyMCE.settings.oninit, setupPreventLostWork);
            }

            $('form.prevent_lost_work').each(function() {
                    var form = $(this);
                    form.bind("submit", function(e) {
                            set_culprit_status($(this), null, false);
                            // Since things like TinyMCE unload execute after form submission event, add an explicit disabled class for the window.unload to latch onto.
                            $(this).addClass("prevent_lost_work_disabled");
                        });
                });
        }

        // Networks menu toggle function
        $("#networks_menu_link").click(function(e) {
                e.preventDefault();
                var menu = $("#networks_menu");

                if(menu.is(":visible")) {
                    menu.toggle("slide", { direction: "up" }, 250);
                }
                else {
                    menu.toggle("slide", { direction: "up" }, 250);
                    $("body").one('click', function(ev) {
                            if(!$(ev.target).is("#networks_menu_link")) {
                                var menu = $("#networks_menu");
                                if(menu.is(":visible")) {
                                    ev.stopPropagation();
                                    menu.toggle("slide", { direction: "up" }, 250);
                                }
                            }
                        });
                }
                return false;
            });
    });
/**
* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
* 
* @param  f  onMouseOver function || An object with configuration options
* @param  g  onMouseOut function  || Nothing (use configuration options object)
* @author    Brian Cherne <brian@cherne.net>
*/
(function($){$.fn.hoverIntent=function(f,g){var cfg={sensitivity:7,interval:100,timeout:0};cfg=$.extend(cfg,g?{over:f,out:g}:f);var cX,cY,pX,pY;var track=function(ev){cX=ev.pageX;cY=ev.pageY;};var compare=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);if((Math.abs(pX-cX)+Math.abs(pY-cY))<cfg.sensitivity){$(ob).unbind("mousemove",track);ob.hoverIntent_s=1;return cfg.over.apply(ob,[ev]);}else{pX=cX;pY=cY;ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}};var delay=function(ev,ob){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);ob.hoverIntent_s=0;return cfg.out.apply(ob,[ev]);};var handleHover=function(e){var p=(e.type=="mouseover"?e.fromElement:e.toElement)||e.relatedTarget;while(p&&p!=this){try{p=p.parentNode;}catch(e){p=this;}}if(p==this){return false;}var ev=jQuery.extend({},e);var ob=this;if(ob.hoverIntent_t){ob.hoverIntent_t=clearTimeout(ob.hoverIntent_t);}if(e.type=="mouseover"){pX=ev.pageX;pY=ev.pageY;$(ob).bind("mousemove",track);if(ob.hoverIntent_s!=1){ob.hoverIntent_t=setTimeout(function(){compare(ev,ob);},cfg.interval);}}else{$(ob).unbind("mousemove",track);if(ob.hoverIntent_s==1){ob.hoverIntent_t=setTimeout(function(){delay(ev,ob);},cfg.timeout);}}};return this.mouseover(handleHover).mouseout(handleHover);};})(jQuery);/**
 * jQuery Templates
 *
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Written by: Stan Lemon <stanlemon@mac.com>
 *
 * Based off of the Ext.Template library, available at:
 * http://www.extjs.com
 *
 * This library provides basic templating functionality, allowing for macro-based
 * templates within jQuery.
 *
 * Basic Usage:
 *
 * var t = $.template('<div id="foo">Hello ${name}, how are you ${question}?  I am ${me:substr(0,10)}</div>');
 *
 * $(selector).append( t , {
 *     name: 'Stan',
 *     question: 'feeling',
 *     me: 'doing quite well myself, thank you very much!'
 * });
 *
 * Requires: jQuery 1.2+
 *
 *
 * @todo    Add callbacks to the DOM manipulation methods, so that events can be bound
 *          to template nodes after creation.
 */
(function($){
	
	/**
	 * Create a New Template
	 */
	$.template = function(html, options) {
		return new $.template.instance(html, options);
	};

	/**
	 * Template constructor - Creates a new template instance.
	 *
	 * @param 	html 	The string of HTML to be used for the template.
	 * @param 	options An object of configurable options.  Currently
	 * 			you can toggle compile as a boolean value and set a custom
	 *          template regular expression on the property regx by
	 *          specifying the key of the regx to use from the regx object.
	 */
	$.template.instance = function(html, options) {
        // If a custom regular expression has been set, grab it from the regx object
        if ( options && options['regx'] ) options.regx = this.regx[ options.regx ];

		this.options = $.extend({
			compile: 		false,
			regx:           this.regx.standard
		}, options || {});

		this.html = html;

		if (this.options.compile) {
			this.compile();   
		}
		this.isTemplate = true;
	};

	/**
	 * Regular Expression for Finding Variables
	 *
	 * The default pattern looks for variables in JSP style, the form of: ${variable}
	 * There are also regular expressions available for ext-style variables and
	 * jTemplate style variables.
	 *
	 * You can add your own regular expressions for variable ussage by doing.
	 * $.extend({ $.template.re , {
	 *     myvartype: /...../g
	 * }
	 *
	 * Then when creating a template do:
	 * var t = $.template("<div>...</div>", { regx: 'myvartype' });
	 */
	$.template.regx = $.template.instance.prototype.regx = {
	    jsp:        /\$\{([\w-]+)(?:\:([\w\.]*)(?:\((.*?)?\))?)?\}/g,
        ext:        /\{([\w-]+)(?:\:([\w\.]*)(?:\((.*?)?\))?)?\}/g,
        jtemplates: /\{\{([\w-]+)(?:\:([\w\.]*)(?:\((.*?)?\))?)?\}\}/g
	};
	
	/**
	 * Set the standard regular expression to be used.
	 */
	$.template.regx.standard = $.template.regx.jsp;
	
	/**
	 * Variable Helper Methods
	 *
	 * This is a collection of methods which can be used within the variable syntax, ie:
	 * ${variable:substr(0,30)} Which would only print a substring, 30 characters in length
	 * begining at the first character for the variable named "variable".
	 *
	 * A basic substring helper is provided as an example of how you can define helpers.
	 * To add more helpers simply do:
	 * $.extend( $.template.helpers , {
	 *	 sampleHelper: function() { ... }	
	 * });
	 */
	$.template.helpers = $.template.instance.prototype.helpers = {
		substr : function(value, start, length){
			return String(value).substr(start, length);
		}
	};


	/**
	 * Template Instance Methods
	 */
	$.extend( $.template.instance.prototype, {
		
		/**
		 * Apply Values to a Template
		 *
		 * This is the macro-work horse of the library, it receives an object
		 * and the properties of that objects are assigned to the template, where
		 * the variables in the template represent keys within the object itself.
		 *
		 * @param 	values 	An object of properties mapped to template variables
		 */
		apply: function(values) {
			if (this.options.compile) {
				return this.compiled(values);
			} else {
				var tpl = this;
				var fm = this.helpers;

				var fn = function(m, name, format, args) {
					if (format) {
						if (format.substr(0, 5) == "this."){
							return tpl.call(format.substr(5), values[name], values);
						} else {
							if (args) {
								// quoted values are required for strings in compiled templates, 
								// but for non compiled we need to strip them
								// quoted reversed for jsmin
								var re = /^\s*['"](.*)["']\s*$/;
								args = args.split(',');

								for(var i = 0, len = args.length; i < len; i++) {
									args[i] = args[i].replace(re, "$1");
								}
								args = [values[name]].concat(args);
							} else {
								args = [values[name]];
							}

							return fm[format].apply(fm, args);
						}
					} else {
						return values[name] !== undefined ? values[name] : "";
					}
				};

				return this.html.replace(this.options.regx, fn);
			}
		},

		/**
		 * Compile a template for speedier usage
		 */
		compile: function() {
			var sep = $.browser.mozilla ? "+" : ",";
			var fm = this.helpers;

			var fn = function(m, name, format, args){
				if (format) {
					args = args ? ',' + args : "";

					if (format.substr(0, 5) != "this.") {
						format = "fm." + format + '(';
					} else {
						format = 'this.call("'+ format.substr(5) + '", ';
						args = ", values";
					}
				} else {
					args= ''; format = "(values['" + name + "'] == undefined ? '' : ";
				}
				return "'"+ sep + format + "values['" + name + "']" + args + ")"+sep+"'";
			};

			var body;

			if ($.browser.mozilla) {
				body = "this.compiled = function(values){ return '" +
					   this.html.replace(/\\/g, '\\\\').replace(/(\r\n|\n)/g, '\\n').replace(/'/g, "\\'").replace(this.options.regx, fn) +
						"';};";
			} else {
				body = ["this.compiled = function(values){ return ['"];
				body.push(this.html.replace(/\\/g, '\\\\').replace(/(\r\n|\n)/g, '\\n').replace(/'/g, "\\'").replace(this.options.regx, fn));
				body.push("'].join('');};");
				body = body.join('');
			}
			eval(body);
			return this;
		}
	});


	/**
	 * Save a reference in this local scope to the original methods which we're 
	 * going to overload.
	 **/
	var $_old = {
	    domManip: $.fn.domManip,
	    text: $.fn.text,
	    html: $.fn.html
	};

	/**
	 * Overwrite the domManip method so that we can use things like append() by passing a 
	 * template object and macro parameters.
	 */
	$.fn.domManip = function( args, table, reverse, callback ) {
		if (args[0].isTemplate) {
			// Apply the template and it's arguments...
			args[0] = args[0].apply( args[1] );
			// Get rid of the arguements, we don't want to pass them on
			delete args[1];
		}

		// Call the original method
		var r = $_old.domManip.apply(this, arguments);

		return r;
	};

    /**
     * Overwrite the html() method
     */
	$.fn.html = function( value , o ) {
	    if (value && value.isTemplate) var value = value.apply( o );

		var r = $_old.html.apply(this, [value]);

		return r;
	};
	
	/**
	 * Overwrite the text() method
	 */
	$.fn.text = function( value , o ) {
	    if (value && value.isTemplate) var value = value.apply( o );

		var r = $_old.text.apply(this, [value]);

		return r;
	};

})(jQuery);
if(window.Ext != undefined) {
    Ext.namespace("PBS.config");
    Ext.BLANK_IMAGE_URL = 'http://www-tc.pbs.org/peerconnection/media/js/ext/2/resources/images/default/s.gif';
}
if(window.jQuery != undefined) {
    jQuery.namespace('PBS.config');
}
PBS.config.server_url = '';
PBS.config.site_url = 'http://www.pbs.org/peerconnection/';
PBS.config.media_url = 'http://www-tc.pbs.org/peerconnection/media/';
PBS.config.cookie_domain = '.pbs.org';
PBS.config.cookie_path = '/';
PBS.config.cookie_expires = new Date(new Date().getTime()+(1000*60*60*24*7)); // 7 days
jQuery.fn.uniform = function(settings) {
  settings = jQuery.extend({
    valid_class    : 'valid',
    invalid_class  : 'invalid',
    focused_class  : 'focused',
    holder_class   : 'ctrlHolder',
    field_selector : 'input, select, textarea'
  }, settings);

  return this.each(function() {
    var form = jQuery(this);
    // Select form fields and attach them higlighter functionality
    form.find(settings.field_selector).focus(function() {
      form.find('.' + settings.focused_class).removeClass(settings.focused_class);
      jQuery(this).parents("." + settings.holder_class).addClass(settings.focused_class);
    }).blur(function() {
      form.find('.' + settings.focused_class).removeClass(settings.focused_class);
    });
  });
};

$(document).ready(function() {
  jQuery('form.uniForm').uniform();

  var settings = {
      valid_class    : 'valid',
      invalid_class  : 'invalid',
      focused_class  : 'focused',
      holder_class   : 'ctrlHolder',
      field_selector : 'input, select, textarea'
  };

  if(typeof(tinyMCE) != "undefined" && tinyMCE.settings) {
      var setupOnFocusBlur = function() {
          $.each(tinyMCE.editors, function() {
                  var container = $(this.getContainer());
                  var form = container.parents("form");
                  $(this.getDoc()).bind('focus', function(e) {
                          form.find('.' + settings.focused_class).removeClass(settings.focused_class);
                          container.parents("." + settings.holder_class).addClass(settings.focused_class);
                      }).bind('blur', function(e) {
                              form.find('.' + settings.focused_class).removeClass(settings.focused_class);
                          });
              });
          return this;
      };
      tinyMCE.settings.oninit = jQuery.chain(tinyMCE.settings.oninit, setupOnFocusBlur);
  }
});
/**
 *  jQuery Plugin highlightFade (jquery.offput.ca/highlightFade)
 *  (c) 2006 Blair Mitchelmore (offput.ca) blair@offput.ca
 */
jQuery.fn.highlightFade = function(settings) {
	var o = (settings && settings.constructor == String) ? {start: settings} : settings || {};
	var d = jQuery.highlightFade.defaults;
	var i = o['interval'] || d['interval'];
	var a = o['attr'] || d['attr'];
	var ts = {
		'linear': function(s,e,t,c) { return parseInt(s+(c/t)*(e-s)); },
		'sinusoidal': function(s,e,t,c) { return parseInt(s+Math.sin(((c/t)*90)*(Math.PI/180))*(e-s)); },
		'exponential': function(s,e,t,c) { return parseInt(s+(Math.pow(c/t,2))*(e-s)); }
	};
	var t = (o['iterator'] && o['iterator'].constructor == Function) ? o['iterator'] : ts[o['iterator']] || ts[d['iterator']] || ts['linear'];
	if (d['iterator'] && d['iterator'].constructor == Function) t = d['iterator'];
	return this.each(function() {
		if (!this.highlighting) this.highlighting = {};
		var e = (this.highlighting[a]) ? this.highlighting[a].end : jQuery.highlightFade.getBaseValue(this,a) || [255,255,255];
		var c = jQuery.highlightFade.getRGB(o['start'] || o['colour'] || o['color'] || d['start'] || [255,255,128]);
		var s = jQuery.speed(o['speed'] || d['speed']);
		var r = o['final'] || (this.highlighting[a] && this.highlighting[a].orig) ? this.highlighting[a].orig : jQuery.curCSS(this,a);
		if (o['end'] || d['end']) r = jQuery.highlightFade.asRGBString(e = jQuery.highlightFade.getRGB(o['end'] || d['end']));
		if (typeof o['final'] != 'undefined') r = o['final'];
		if (this.highlighting[a] && this.highlighting[a].timer) window.clearInterval(this.highlighting[a].timer);
		this.highlighting[a] = { steps: ((s.duration) / i), interval: i, currentStep: 0, start: c, end: e, orig: r, attr: a };
		jQuery.highlightFade(this,a,o['complete'],t);
	});
};

jQuery.highlightFade = function(e,a,o,t) {
	e.highlighting[a].timer = window.setInterval(function() {
		var newR = t(e.highlighting[a].start[0],e.highlighting[a].end[0],e.highlighting[a].steps,e.highlighting[a].currentStep);
		var newG = t(e.highlighting[a].start[1],e.highlighting[a].end[1],e.highlighting[a].steps,e.highlighting[a].currentStep);
		var newB = t(e.highlighting[a].start[2],e.highlighting[a].end[2],e.highlighting[a].steps,e.highlighting[a].currentStep);
		jQuery(e).css(a,jQuery.highlightFade.asRGBString([newR,newG,newB]));
		if (e.highlighting[a].currentStep++ >= e.highlighting[a].steps) {
			jQuery(e).css(a,e.highlighting[a].orig || '');
			window.clearInterval(e.highlighting[a].timer);
			e.highlighting[a] = null;
			if (o && o.constructor == Function) o.call(e);
		}
	},e.highlighting[a].interval);
};

jQuery.highlightFade.defaults = {
	start: [255,255,128],
	interval: 50,
	speed: 400,
	attr: 'backgroundColor'
};

jQuery.highlightFade.getRGB = function(c,d) {
	var result;
	if (c && c.constructor == Array && c.length == 3) return c;
	if (result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(c))
		return [parseInt(result[1]),parseInt(result[2]),parseInt(result[3])];
	else if (result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(c))
		return [parseFloat(result[1])*2.55,parseFloat(result[2])*2.55,parseFloat(result[3])*2.55];
	else if (result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(c))
		return [parseInt("0x" + result[1]),parseInt("0x" + result[2]),parseInt("0x" + result[3])];
	else if (result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(c))
		return [parseInt("0x"+ result[1] + result[1]),parseInt("0x" + result[2] + result[2]),parseInt("0x" + result[3] + result[3])];
	else
		return jQuery.highlightFade.checkColorName(c) || d || null;
};

jQuery.highlightFade.asRGBString = function(a) {
	return "rgb(" + a.join(",") + ")";
};

jQuery.highlightFade.getBaseValue = function(e,a,b) {
	var s, t;
	b = b || false;
	t = a = a || jQuery.highlightFade.defaults['attr'];
	do {
		s = jQuery(e).css(t || 'backgroundColor');
		if ((s  != '' && s != 'transparent') || (e.tagName.toLowerCase() == "body") || (!b && e.highlighting && e.highlighting[a] && e.highlighting[a].end)) break;
		t = false;
	} while (e = e.parentNode);
	if (!b && e.highlighting && e.highlighting[a] && e.highlighting[a].end) s = e.highlighting[a].end;
	if (s == undefined || s == '' || s == 'transparent') s = [255,255,255];
	return jQuery.highlightFade.getRGB(s);
};

jQuery.highlightFade.checkColorName = function(c) {
	if (!c) return null;
	switch(c.replace(/^\s*|\s*$/g,'').toLowerCase()) {
		case 'aqua': return [0,255,255];
		case 'black': return [0,0,0];
		case 'blue': return [0,0,255];
		case 'fuchsia': return [255,0,255];
		case 'gray': return [128,128,128];
		case 'green': return [0,128,0];
		case 'lime': return [0,255,0];
		case 'maroon': return [128,0,0];
		case 'navy': return [0,0,128];
		case 'olive': return [128,128,0];
		case 'purple': return [128,0,128];
		case 'red': return [255,0,0];
		case 'silver': return [192,192,192];
		case 'teal': return [0,128,128];
		case 'white': return [255,255,255];
		case 'yellow': return [255,255,0];
	}
};
/*
 * @name BeautyTips
 * @desc a tooltips/baloon-help plugin for jQuery
 *
 * @author Jeff Robbins - Lullabot - http://www.lullabot.com
 * @version 0.9.1  (2/15/2009)
 */
jQuery.fn.bt=function(content,options){if(typeof content!="string"){var contentSelect=true;options=content;content=false}else{var contentSelect=false}if(jQuery.fn.hoverIntent&&jQuery.bt.defaults.trigger=="hover"){jQuery.bt.defaults.trigger="hoverIntent"}return this.each(function(index){var opts=jQuery.extend(false,jQuery.bt.defaults,options);opts.spikeLength=numb(opts.spikeLength);opts.spikeGirth=numb(opts.spikeGirth);opts.overlap=numb(opts.overlap);var ajaxTimeout=false;if(opts.killTitle){$(this).find("[title]").andSelf().each(function(){if(!$(this).attr("bt-xTitle")){$(this).attr("bt-xTitle",$(this).attr("title")).attr("title","")}})}if(typeof opts.trigger=="string"){opts.trigger=[opts.trigger]}if(opts.trigger[0]=="hoverIntent"){var hoverOpts=$.extend(opts.hoverIntentOpts,{over:function(){this.btOn()},out:function(){this.btOff()}});$(this).hoverIntent(hoverOpts)}else{if(opts.trigger[0]=="hover"){$(this).hover(function(){this.btOn()},function(){this.btOff()})}else{if(opts.trigger[0]=="now"){if($(this).hasClass("bt-active")){this.btOff()}else{this.btOn()}}else{if(opts.trigger[0]=="none"){}else{if(opts.trigger.length>1&&opts.trigger[0]!=opts.trigger[1]){$(this).bind(opts.trigger[0],function(){this.btOn()}).bind(opts.trigger[1],function(){this.btOff()})}else{$(this).bind(opts.trigger[0],function(){if($(this).hasClass("bt-active")){this.btOff()}else{this.btOn()}})}}}}}this.btOn=function(){if(typeof $(this).data("bt-box")=="object"){this.btOff()}opts.preShow.apply(this);$(jQuery.bt.vars.closeWhenOpenStack).btOff();$(this).addClass("bt-active "+opts.activeClass);if(contentSelect&&opts.ajaxPath==null){if(opts.killTitle){$(this).attr("title",$(this).attr("bt-xTitle"))}content=eval(opts.contentSelector);if(opts.killTitle){$(this).attr("title","")}}if(opts.ajaxPath!=null&&content==false){if(typeof opts.ajaxPath=="object"){var url=eval(opts.ajaxPath[0]);url+=opts.ajaxPath[1]?" "+opts.ajaxPath[1]:""}else{var url=opts.ajaxPath}var off=url.indexOf(" ");if(off>=0){var selector=url.slice(off,url.length);url=url.slice(0,off)}var cacheData=opts.ajaxCache?$(document.body).data("btCache-"+url.replace(/\./g,"")):null;if(typeof cacheData=="string"){content=selector?jQuery("<div/>").append(cacheData.replace(/<script(.|\s)*?\/script>/g,"")).find(selector):cacheData}else{var target=this;var ajaxOpts=jQuery.extend(false,{type:opts.ajaxType,data:opts.ajaxData,cache:opts.ajaxCache,url:url,complete:function(XMLHttpRequest,textStatus){if(textStatus=="success"||textStatus=="notmodified"){if(opts.ajaxCache){$(document.body).data("btCache-"+url.replace(/\./g,""),XMLHttpRequest.responseText)}ajaxTimeout=false;content=selector?jQuery("<div/>").append(XMLHttpRequest.responseText.replace(/<script(.|\s)*?\/script>/g,"")).find(selector):XMLHttpRequest.responseText}else{if(textStatus=="timeout"){ajaxTimeout=true}content=opts.ajaxError.replace(/%error/g,XMLHttpRequest.statusText)}if($(target).hasClass("bt-active")){target.btOn()}}},opts.ajaxData);$.ajax(ajaxOpts);content=opts.ajaxLoading}}var offsetParent=$(this).offsetParent();var pos=$(this).btPosition();var top=numb(pos.top)+numb($(this).css("margin-top"));var left=numb(pos.left)+numb($(this).css("margin-left"));var width=$(this).outerWidth();var height=$(this).outerHeight();if(typeof content=="object"){content=$(content).clone(true).show()}var $text=$('<div class="bt-content"></div>').append(content).css({padding:opts.padding,position:"absolute",width:opts.width,zIndex:opts.textzIndex}).css(opts.cssStyles);var $box=$('<div class="bt-wrapper"></div>').append($text).addClass(opts.cssClass).css({position:"absolute",width:opts.width,zIndex:opts.wrapperzIndex}).appendTo(offsetParent);if($.fn.bgiframe){$text.bgiframe();$box.bgiframe()}$(this).data("bt-box",$box);var scrollTop=numb($(document).scrollTop());var scrollLeft=numb($(document).scrollLeft());var docWidth=numb($(window).width());var docHeight=numb($(window).height());var winRight=scrollLeft+docWidth;var winBottom=scrollTop+docHeight;var space=new Object();space.top=$(this).offset().top-scrollTop;space.bottom=docHeight-(($(this).offset().top+height)-scrollTop);space.left=$(this).offset().left-scrollLeft;space.right=docWidth-(($(this).offset().left+width)-scrollLeft);var textOutHeight=numb($text.outerHeight());var textOutWidth=numb($text.outerWidth());if(opts.positions.constructor==String){opts.positions=opts.positions.replace(/ /,"").split(",")}if(opts.positions[0]=="most"){var position="top";for(var pig in space){position=space[pig]>space[position]?pig:position}}else{for(var x in opts.positions){var position=opts.positions[x];if((position=="left"||position=="right")&&space[position]>textOutWidth+opts.spikeLength){break}else{if((position=="top"||position=="bottom")&&space[position]>textOutHeight+opts.spikeLength){break}}}}var horiz=left+((width-textOutWidth)*0.5);var vert=top+((height-textOutHeight)*0.5);var animDist=opts.animate?numb(opts.distance):0;var points=new Array();var textTop,textLeft,textRight,textBottom,textTopSpace,textBottomSpace,textLeftSpace,textRightSpace,crossPoint,textCenter,spikePoint;switch(position){case"top":$text.css("margin-bottom",opts.spikeLength+"px");$box.css({top:(top-$text.outerHeight(true)-animDist)+opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.outerWidth(true));var xShift=0;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.outerWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.outerWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={y:textBottom+opts.spikeLength,x:((textRight-textLeft)*0.5)+xShift,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textBottom);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.CornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:crossPoint.x+(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]=spikePoint;break;case"left":$text.css("margin-right",opts.spikeLength+"px");$box.css({top:vert+"px",left:((left-$text.outerWidth(true)-animDist)+opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=0;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.outerWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.outerWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:textRight+opts.spikeLength,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textRight);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textRight,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break;case"bottom":$text.css("margin-top",opts.spikeLength+"px");$box.css({top:(top+height+animDist)-opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.outerWidth(true));var xShift=0;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.outerWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.outerWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:((textRight-textLeft)*0.5)+xShift,y:0,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textTop);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x+opts.spikeGirth/2,y:textTop,type:"join"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textTop,type:"join"};points[points.length]=spikePoint;break;case"right":$text.css("margin-left",(opts.spikeLength+"px"));$box.css({top:vert+"px",left:((left+width+animDist)-opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=0;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.outerWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.outerWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:0,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textLeft);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textLeft,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break}var canvas=$('<canvas width="'+(numb($text.outerWidth(true))+opts.strokeWidth*2)+'" height="'+(numb($text.outerHeight(true))+opts.strokeWidth*2)+'"></canvas>').appendTo($box).css({position:"absolute",top:$text.btPosition().top,left:$text.btPosition().left,zIndex:opts.boxzIndex}).get(0);if(typeof G_vmlCanvasManager!="undefined"){canvas=G_vmlCanvasManager.initElement(canvas)}if(opts.cornerRadius>0){var newPoints=new Array();var newPoint;for(var i=0;i<points.length;i++){if(points[i].type=="corner"){newPoint=betweenPoint(points[i],points[(i-1)%points.length],opts.cornerRadius);newPoint.type="arcStart";newPoints[newPoints.length]=newPoint;newPoints[newPoints.length]=points[i];newPoint=betweenPoint(points[i],points[(i+1)%points.length],opts.cornerRadius);newPoint.type="arcEnd";newPoints[newPoints.length]=newPoint}else{newPoints[newPoints.length]=points[i]}}points=newPoints}var ctx=canvas.getContext("2d");drawIt.apply(ctx,[points],opts.strokeWidth);ctx.fillStyle=opts.fill;if(opts.shadow){ctx.shadowOffsetX=2;ctx.shadowOffsetY=2;ctx.shadowBlur=5;ctx.shadowColor=opts.shadowColor}ctx.closePath();ctx.fill();if(opts.strokeWidth>0){ctx.shadowColor="rgba(0, 0, 0, 0)";ctx.lineWidth=opts.strokeWidth;ctx.strokeStyle=opts.strokeStyle;ctx.beginPath();drawIt.apply(ctx,[points],opts.strokeWidth);ctx.closePath();ctx.stroke()}if(opts.animate){$box.css({opacity:0.1})}$box.css({visibility:"visible"});if(opts.overlay){var overlay=$('<div class="bt-overlay"></div>').css({position:"absolute",backgroundColor:"blue",top:top,left:left,width:width,height:height,opacity:".2"}).appendTo(offsetParent);$(this).data("overlay",overlay)}var animParams={opacity:1};if(opts.animate){switch(position){case"top":animParams.top=$box.btPosition().top+opts.distance;break;case"left":animParams.left=$box.btPosition().left+opts.distance;break;case"bottom":animParams.top=$box.btPosition().top-opts.distance;break;case"right":animParams.left=$box.btPosition().left-opts.distance;break}$box.animate(animParams,{duration:opts.speed,easing:opts.easing})}if((opts.ajaxPath!=null&&opts.ajaxCache==false)||ajaxTimeout){content=false}if(opts.clickAnywhereToClose){jQuery.bt.vars.clickAnywhereStack.push(this);$(document).click(jQuery.bt.docClick)}if(opts.closeWhenOthersOpen){jQuery.bt.vars.closeWhenOpenStack.push(this)}opts.postShow.apply(this)};this.btOff=function(){opts.preHide.apply(this);var box=$(this).data("bt-box");var overlay=$(this).data("bt-overlay");if(typeof box=="object"){$(box).remove();$(this).removeData("bt-box")}if(typeof overlay=="object"){$(overlay).remove();$(this).removeData("bt-overlay")}jQuery.bt.vars.clickAnywhereStack=arrayRemove(jQuery.bt.vars.clickAnywhereStack,this);jQuery.bt.vars.closeWhenOpenStack=arrayRemove(jQuery.bt.vars.closeWhenOpenStack,this);opts.postHide.apply(this);$(this).removeClass("bt-active "+opts.activeClass)};var refresh=this.btRefresh=function(){this.btOff();this.btOn()}});function drawIt(points,strokeWidth){this.moveTo(points[0].x,points[0].y);for(i=1;i<points.length;i++){if(points[i-1].type=="arcStart"){this.quadraticCurveTo(round5(points[i].x,strokeWidth),round5(points[i].y,strokeWidth),round5(points[(i+1)%points.length].x,strokeWidth),round5(points[(i+1)%points.length].y,strokeWidth));i++}else{this.lineTo(round5(points[i].x,strokeWidth),round5(points[i].y,strokeWidth))}}}function round5(num,strokeWidth){var ret;strokeWidth=numb(strokeWidth);if(strokeWidth%2){ret=num}else{ret=Math.round(num-0.5)+0.5}return ret}function numb(num){return parseInt(num)||0}function arrayRemove(arr,elem){var x,newArr=new Array();for(x in arr){if(arr[x]!=elem){newArr.push(arr[x])}}return newArr}function betweenPoint(point1,point2,dist){var y,x;if(point1.x==point2.x){y=point1.y<point2.y?point1.y+dist:point1.y-dist;return{x:point1.x,y:y}}else{if(point1.y==point2.y){x=point1.x<point2.x?point1.x+dist:point1.x-dist;return{x:x,y:point1.y}}}}function centerPoint(arcStart,corner,arcEnd){var x=corner.x==arcStart.x?arcEnd.x:arcStart.x;var y=corner.y==arcStart.y?arcEnd.y:arcStart.y;var startAngle,endAngle;if(arcStart.x<arcEnd.x){if(arcStart.y>arcEnd.y){startAngle=(Math.PI/180)*180;endAngle=(Math.PI/180)*90}else{startAngle=(Math.PI/180)*90;endAngle=0}}else{if(arcStart.y>arcEnd.y){startAngle=(Math.PI/180)*270;endAngle=(Math.PI/180)*180}else{startAngle=0;endAngle=(Math.PI/180)*270}}return{x:x,y:y,type:"center",startAngle:startAngle,endAngle:endAngle}}function findIntersect(r1x1,r1y1,r1x2,r1y2,r2x1,r2y1,r2x2,r2y2){if(r2x1==r2x2){return findIntersectY(r1x1,r1y1,r1x2,r1y2,r2x1)}if(r2y1==r2y2){return findIntersectX(r1x1,r1y1,r1x2,r1y2,r2y1)}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var r2m=(r2y1-r2y2)/(r2x1-r2x2);var r2b=r2y1-(r2m*r2x1);var x=(r2b-r1b)/(r1m-r2m);var y=r1m*x+r1b;return{x:x,y:y}}function findIntersectY(r1x1,r1y1,r1x2,r1y2,x){if(r1y1==r1y2){return{x:x,y:r1y1}}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var y=r1m*x+r1b;return{x:x,y:y}}function findIntersectX(r1x1,r1y1,r1x2,r1y2,y){if(r1x1==r1x2){return{x:r1x1,y:y}}var r1m=(r1y1-r1y2)/(r1x1-r1x2);var r1b=r1y1-(r1m*r1x1);var x=(y-r1b)/r1m;return{x:x,y:y}}};jQuery.fn.btPosition=function(){function num(elem,prop){return elem[0]&&parseInt(jQuery.curCSS(elem[0],prop,true),10)||0}var left=0,top=0,results;if(this[0]){var offsetParent=this.offsetParent(),offset=this.offset(),parentOffset=/^body|html$/i.test(offsetParent[0].tagName)?{top:0,left:0}:offsetParent.offset();offset.top-=num(this,"marginTop");offset.left-=num(this,"marginLeft");parentOffset.top+=num(offsetParent,"borderTopWidth");parentOffset.left+=num(offsetParent,"borderLeftWidth");results={top:offset.top-parentOffset.top,left:offset.left-parentOffset.left}}return results};jQuery.fn.btOn=function(){return this.each(function(index){if($.isFunction(this.btOn)){this.btOn()}})};jQuery.fn.btOff=function(){return this.each(function(index){if($.isFunction(this.btOff)){this.btOff()}})};jQuery.bt={};jQuery.bt.vars={clickAnywhereStack:[],closeWhenOpenStack:[]};jQuery.bt.docClick=function(e){if(!e){var e=window.event}if(!$(e.target).parents().andSelf().filter(".bt-wrapper, .bt-active").length){$(jQuery.bt.vars.clickAnywhereStack).btOff();$(document).unbind("click",jQuery.bt.docClick)}};jQuery.bt.defaults={trigger:"hover",clickAnywhereToClose:true,closeWhenOthersOpen:false,width:"200px",padding:"10px",spikeGirth:10,spikeLength:15,overlap:0,overlay:false,killTitle:true,textzIndex:9999,boxzIndex:9998,wrapperzIndex:9997,positions:["most"],fill:"rgb(255, 255, 102)",windowMargin:10,strokeWidth:1,strokeStyle:"#000",cornerRadius:5,centerPointX:0.5,centerPointY:0.5,shadow:false,shadowOffsetX:2,shadowOffsetY:2,shadowBlur:3,shadowColor:"#000",animate:false,distance:15,easing:"swing",speed:200,cssClass:"",cssStyles:{},activeClass:"bt-active",contentSelector:"$(this).attr('title')",ajaxPath:null,ajaxError:"<strong>ERROR:</strong> <em>%error</em>",ajaxLoading:"<blink>Loading...</blink>",ajaxData:{},ajaxType:"GET",ajaxCache:true,ajaxOpts:{},preShow:function(){return},postShow:function(){return},preHide:function(){return},postHide:function(){return},hoverIntentOpts:{interval:300,timeout:500}};jQuery.bt.defaults.closeWhenOthersOpen = true;

jQuery.fn.tipBubble = function() {
    return this.each(function(i){
        var el = $(this);
        var classes = el.attr("class");
        if(classes != null) {
            var enabled = false;
            var class_name = "";
            var settings = {
                ajaxPath: "http://www.pbs.org/peerconnection/tips/",
                ajaxError: "<strong>Whoops!</strong> There was a problem getting this content. Here's what we know: <em>%error</em>.",
                fill: "#D6F9B6",
                strokeStyle: "#73B537",
                spikeLength: 10,
                spikeGirth: 10,
                padding: 8,
                cornerRadius: 5,
                cssStyles: {
                    fontSize: "11px"
                }
            };
            classes = classes.split(" ");
            for(var i=0; i<classes.length; i++) {
                class_name = classes[i];
                if(class_name.substr(0, 4) == "tip_") {
                    enabled = true;
                    class_name = class_name.substr(4);
                    settings.ajaxPath = settings.ajaxPath + class_name + "/";
                }
                else {
                    if(class_name.substr(0, 5) == "tips_") {
                        class_name = class_name.substr(5);
                        if(class_name.substr(0, 9) == "position_") {
                            settings.positions = class_name.substr(9).split("_");
                        }
                        if(class_name.substr(0, 8) == "trigger_") {
                            settings.trigger = class_name.substr(8).split("_");
                        }
                    }
                }
            }
            if(enabled) {
                el.bt(settings);
            }
        }
    });
};

jQuery.fn.tipBox = function() {
    return this.each(function(i){
            var $el = $(this);
            var el = this;
            var actions = $('<div class="tip_box_actions"><a href="javascript:void(0);" class="tip_box_disable">Hide Info</a></div>');
            actions.find('.tip_box_hide').bind('click', function(e) {
                    e.preventDefault();
                    e.stopPropagation();
                    $el.slideUp(function() {
                            $el.remove();
                        });
                });
            actions.find('.tip_box_disable').bind('click', function(e) {
                    e.preventDefault();
                    e.stopPropagation();
                    
                    var slug = el.id.replace(/tip_box_/, '');
                    var link = $(this);
                    link.addClass('throbber');
                    $.ajax({
                        url: 'http://www.pbs.org/peerconnection/tips/disable/ajax/' + slug + "/",
                        dataType: 'json',
                        type: 'POST',
                        global: false,
                        success: function(data, textStatus) {
                            $el.slideUp(function() {
                                $el.remove();
                            });
                            link.removeClass('throbber');
                        },
                        failure: function() {
                            link.removeClass('throbber');
                        }
                        });
                });

            $el.find('.tip_box_border_fix').prepend(actions);
        });
};


$(document).ready(function() {
        $(".tips_enabled").tipBubble();
        $('.tip_box').tipBox();
    });
$(document).ready(function() {
        $('.filter').bind('click', function(e) {
                $('.active_filter').removeClass('active_filter');
                $(this).addClass('active_filter');
                $('.activities').addClass('hidden');
                $('.' + this.id).removeClass('hidden');
            });
});