var HoverImg = new Class({ 
	initialize : function(eles){
		
		var self = this;
		
		eles.each(function(element){
		    if(element.getProperty('src').search(/_nohover.+/) > 0){
                element.addEvent('mouseenter',function(){            
                   var newpic = element.getProperty('src').replace(/_nohover/g, "_hover");
                   element.setProperty('src',newpic);
                           
                });
                
                element.addEvent('mouseleave',function(){
                   var newpic = element.getProperty('src').replace(/_hover/g, "_nohover");
                   element.setProperty('src',newpic);
                });         
            }
		});
	}
});