function Rollovers(){

$(".rollover").each(function() {
				
				var nullsrc = this.src;
				var oversrc = this.src.replace(/(.*)\.(jpg|gif|png)$/i, "$1_over.$2");	
				
							 
			$(this).bind("mouseover",function(ev){
				this.src = oversrc;			   
					});
			
			$(this).bind("mouseout",function(){
				this.src = nullsrc;					  
					 });
			});

};


								
										
$(document).ready(function(){
							Rollovers();
							
							});