/**
 * Marquee 1.0.0
 *
 * 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 Kevin Armstrong <kevin@kevinandre.com>
 * Last updated: 2008.11.08
 *
 * Marquee is a Prototype JSFr based class that allows the creation of display marqueees.
 *
 */
var Marquee=(function(){var options={life:5,animIn:null,animOut:null,className:"",delay:.5};var messageOptions={link:"",className:"",life:0};function _createMarquee(data,opts){$A(data).each(function(msg){if(typeof(msg)!="object"){return}msg=Object.extend(Object.clone(messageOptions),msg);var i=this.data.length;this.data[i]=new Element("div",{"marqueeindex":i,id:'marqueeeMessage'+(new Date().getTime())+i}).setStyle({position:'relative'});Object.extend(this.data[i],msg);if(msg.link!=""){this.data[i].insert(new Element('a',{href:msg.link}).update(msg.message||""))}else{this.data[i].update(msg.message||"")}if(msg.className!=""){this.data[i].addClassName(msg.className)}else if(opts.className!=""){this.data[i].addClassName(opts.className)}var anim=getAnimation(opts.animOut,opts.animOut,this.element);hide(this.data[i],anim.ao);opts.container.insert(this.data[i])}.bind(this))}function hide(elm,x){elm.setStyle(x.style);elm.hide()}function show(elm,x){elm.show();elm.setStyle(x.style)}function getAnimation(ain,aout,elm){if(aout.name&&aout.name=="slide"){aout=Object.extend(Object.clone(aout),{style:"left: "+(-1*Number(elm.getWidth()+10+parseInt(elm.getStyle("padding-left"))))+"px"});ain=Object.extend(Object.clone(ain))}if(aout.name&&aout.name=="blinker"){aout=Object.extend(Object.clone(aout),{style:"margin-top: "+(-1*Number(elm.getWidth()+10+parseInt(elm.getStyle("padding-left"))))+"px"});ain=Object.extend(Object.clone(ain))}if(aout.name&&aout.name=="blind"){aout=Object.extend(Object.clone(aout),{style:"top: "+(-1*Number(elm.getWidth()+10+parseInt(elm.getStyle("padding-left"))))+"px"});ain=Object.extend(Object.clone(ain))}return{ai:ain,ao:aout}}function _beforeAnimation(e){e.memo.show()}function _afterAnimation(e){e.memo.hide()}var _Marquee=Class.create({initialize:function(opts){this.running=false;this.options=Object.extend(Object.clone(options),opts);this.data=[];this.element=(!opts.element)?(new Element("div").wrap(document.body)):$(opts.element);this.element.setStyle({"overflow":"hidden"});if(opts.start&&Object.isFunction(opts.start)){this.element.observe("marquee:start",opts.start)}if(opts.stop&&Object.isFunction(opts.stop)){this.element.observe("marquee:stop",opts.stop)}if(opts.change&&Object.isFunction(opts.change)){this.element.observe("marquee:change",opts.change)}this.element.observe("marquee:before",(opts.before||_beforeAnimation));this.element.observe("marquee:after",(opts.after||_afterAnimation));if(opts.data&&opts.data.length&&opts.data.length>0){this.load(opts.data);delete opts.data}},load:function(data){if(this.running){return}this.empty();this.append(data);this.start(this.current)},append:function(data){if(data&&Object.isArray(data)){data=data}else if(data){data=[data]}else{return false}_createMarquee.call(this,data,Object.extend(Object.clone(this.options),{container:this.element,animOut:(this.options.animOut||Marquee.fadeOut)}))},clear:function(){this.stop(true);var ai=this.options.animIn||Marquee.fadeIn;var ao=this.options.animOut||Marquee.fadeOut;var anim=getAnimation(ai,ao,this.element);hide(this.data[this.current],anim.ao)},empty:function(){this.stop();this.element.descendants().invoke("remove");this.data.clear();this.current=0},start:function(s){if(this.data.length==0||this.running){return}var ai=this.options.animIn||Marquee.fadeIn;var ao=this.options.animOut||Marquee.fadeOut;var anim=getAnimation(ai,ao,this.element);if(typeof(s)=='number'){this.clear();this.current=s;show(this.data[this.current],anim.ai)}var life=(this.data[this.current].life<=0)?this.options.life:this.data[this.current].life;try{this._marqueeOut=(function(t){t.running=true;new Effect.Morph(t.data[t.current],Object.extend(anim.ao,{afterFinish:function(){t.element.fire("marquee:after",t.data[t.current]);t.current=(t.current>=t.data.length-1)?0:t.current+1;try{t._marqueeIn=(function(){t.element.fire("marquee:before",t.data[t.current]);new Effect.Morph(t.data[t.current].id,Object.extend(anim.ai,{afterFinish:function(){t.running=false;t.element.fire("marquee:change");t.start()}}))}.delay(t.options.delay))}catch(e){}}}))}.delay(life,this));this.element.fire("marquee:start")}catch(e){}},stop:function(quiet){this.running=false;if(this._marqueeOut){window.clearTimeout(this._marqueeOut)}if(this._marqueeIn){window.clearTimeout(this._marqueeIn)}if(!quiet){this.element.fire("marquee:stop")}},next:function(){if(this.running){return}this.start((this.current+1>this.data.length-1)?0:this.current+1)},previous:function(){if(this.running){return}this.start((this.current-1<0)?this.data.length-1:this.current-1)}});_Marquee.fadeIn={name:"fade",style:"opacity: 1",duration:.4};_Marquee.fadeOut={name:"fade",style:"opacity: 0",duration:.6};_Marquee.slideIn={name:"slide",style:"left: 0px",duration:.6};_Marquee.slideOut={name:"slide",style:"left: -100px",duration:.4};_Marquee.blindIn={name:"blind",style:"top: 0px",duration:.4};_Marquee.blindOut={name:"blind",style:"top: -20px",duration:.3};_Marquee.testIn={name:"test",style:"top: 0px",duration:.4};_Marquee.testOut={name:"test",style:"top: -20px",duration:.3};return _Marquee})();