/**************************************************************
	http://snipplr.com/view/5318/mootools-image-rollover/
**************************************************************/

if (window.XMLHttpRequest) {
	// IE 7, mozilla, safari, opera 9
	window.addEvent('domready', function() { 
		$$('img.rollover').each(function(img) { 
			var src = img.getProperty('src'); 
			var extension = src.substring(src.lastIndexOf('.'),src.length) 
			img.addEvent('mouseenter', function() { img.setProperty('src',src.replace(extension,'_ov' + extension)); }); 
			img.addEvent('mouseleave', function() { img.setProperty('src',src); }); 
		}); 
	});
} else {
	// IE6, older browsers
	window.addEvent('domready', function() { 
		$$('img.rollover').each(function(img) { 
			var src = img.getProperty('src'); 
			var extension = src.substring(src.lastIndexOf('.'),src.length) 
			img.addEvent('mouseenter', function() { img.setProperty('src',src.replace(extension,'_ov' + extension)); }); 
			img.addEvent('mouseleave', function() { img.setProperty('src',src); }); 
		}); 
	});
}