$(document).ready(function() {
	
	$(".rollover").hover(
 		function() {
  			this.src = this.src.replace("_off","_on");
 		},
 		function() {
			this.src = this.src.replace("_on","_off");
 		}
	);
	
	$(".rollover2").hover(
 		
 		function() {
		
			this.src = this.src.replace("_on","_off");
 		
 		},
 		
 		function() {
  		
  			this.src = this.src.replace("_off","_on");
 		
 		}
	
	)

});