var Rollover=Class.create({initialize:function(){this.elementList=[];this.toggleSuffix="-hover"},addElement:function(element){if(element!=null){this.elementList.push(element);var showHoverImage=function(ev){var el=Event.element(ev);var src=el.src;if(el.src.indexOf(this.toggleSuffix)==-1){el.src=src.replace(/((\._\w\d+_)?\.\w{3,4})?$/,this.toggleSuffix+"$1")}}.bindAsEventListener(this);var showNormalImage=function(ev){var el=Event.element(ev);var src=el.src;el.src=src.replace(this.toggleSuffix,"")}.bindAsEventListener(this);Event.observe(element,"mouseover",showHoverImage);Event.observe(element,"focus",showHoverImage);Event.observe(element,"mouseout",showNormalImage);Event.observe(element,"blur",showNormalImage)}}});rollover=new Rollover();