var banner;
function Banner(){
	var selectionID='banner';
	this.prepare=function(){
		if (!document.getElementById(selectionID)) return false;
		var list=document.getElementById(selectionID).getElementsByTagName('li');
		for(var i=0; i < list.length; i++){
			if(list[i].getElementsByTagName('object').length>0){
				if(list[i].outerHTML){
					var tmp=list[i].innerHTML;
					list[i].innerHTML='';
					list[i].innerHTML=tmp;
				}
			}
		}
		var list=document.getElementById(selectionID).getElementsByTagName('img');
		for(var i=0; i < list.length; i++){
			if(list[i].className.indexOf('rollover') != -1){
				list[i].onmouseover = function(){
					return banner.over(this);
				}
				list[i].onmouseout = function(){
					return banner.out(this);
				}
			}
		}
		return true;
	}
	this.over=function(element){
		var src=element.src.replace(/-over/i,'');
		var pos=src.lastIndexOf('.');
		src=src.substr(0,pos)+'-over'+src.substr(pos);
		element.src=src;
	}
	this.out=function(element){
		element.src=element.src.replace(/-over/i,'');
	}
}
addLoadEvent(function(){
	banner=new Banner();
	banner.prepare();
});