$(document).ready(function(){

	$("img.roll").hover(function(){this.src=this.src.replace("-norm","-roll");},function(){this.src=this.src.replace("-roll","-norm");});
	$("input.roll").hover(function(){this.src=this.src.replace("-norm","-roll");},function(){this.src=this.src.replace("-roll","-norm");});

});