$(function(){
			$("img.rollover").each(function(){
				$("<img>").attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/, "$1_on$2"));
			})
			
			
			if($.browser.msie && $.browser.version<7){
				$("img.rollover").each(function(){
					
					$(this)
						.data("src",$(this).attr("src"))
						.attr("src","./img/trans.gif")
						.css("filter","progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+$(this).data("src")+"',sizingMethod='scale')")
					
				}).mouseover(function(){
					$(this).css("filter","progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+$(this).data("src").replace(/^(.+)(\.[a-z]+)$/, "$1_on$2")+"',sizingMethod='scale')")
				}).mouseout(function(){
					$(this).css("filter","progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+$(this).data("src")+"',sizingMethod='scale')")
				})
				
			}else{
				$("img.rollover").mouseover(function(){
					$(this).attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/, "$1_on$2"));
				}).mouseout(function(){
					$(this).attr("src",$(this).attr("src").replace(/^(.+)_on(\.[a-z]+)$/, "$1$2"));
				})
			}
		})