$(function() {
	$("img.onoff").mouseover(function() {
					try {
						$(this).attr('src',$(this).attr('src').replace('_off','_on'));
					}
					catch(e) {
						if (console) console.log(e);
					}
                }).mouseout(function() {
					try {
						$(this).attr('src',$(this).attr('src').replace('_on','_off'));
					}
					catch(e) {
						if (console) console.log(e);
					}
                });
});