// Mootools Rollover
window.addEvent('domready', function()  
{ 
     var doRollovers = function(elements) {

		elements.each(function(thisel){
        
	   		var src = thisel.getStyle('background-image');
			if (src!='none') {
       			src = src.replace('_over','');
				var extension = src.substring(src.lastIndexOf('.'),src.length);
				if (thisel.getParent().getProperty('class')=='on') { thisel.setStyle('background-image',src.replace(extension,'_over' + extension)); }
				else {
				
       			thisel.addEvent('mouseenter', function() { this.setStyle('background-image',src.replace(extension,'_over' + extension)); });
       			thisel.addEvent('mouseleave', function() {  this.setStyle('background-image',src);    });
				}
	   		}
     	});
	};
	  doRollovers($$('a'));
});