var ListSlider=new Class({Implements:[Options],visible:false,observed:false,options:{openButtonImgSrc:"",closeButtonImgSrc:"",observer:false,observerAction:"click"},initialize:function(content,options){this.setOptions(options);this.content=content;this.setUpObservers()},setUpObservers:function(){var opt=this.options;if($(opt.observer)&&opt.observerAction){this.mySlider=new Fx.Slide(this.content,{duration:500}).hide();$(opt.observer).addEvent(opt.observerAction,function(){this.observed=true;this.show()}.bind(this))}},show:function(){var opt=this.options;if(this.observed&&!this.visible){var bttnChange=$(opt.observer).getElement("img").src=opt.closeButtonImgSrc;this.mySlider.toggle();this.visible=true}else{var bttnChange=$(opt.observer).getElement("img").src=opt.openButtonImgSrc;this.mySlider.toggle();this.visible=false}}});