window.addEvent('domready', function() {
	
	thumb_element = $('nextevent');
	
	thumb_element.addEvent("mouseenter", function(event) {
			var newSrc= this.get('src');
			var newSrc = newSrc.replace('off_', 'on_');
			this.set('src', newSrc );
	 	}
	);
	
	thumb_element.addEvent("mouseleave", function(event) {
			var oldSrc= this.get('src');
			var oldSrc = oldSrc.replace('on_', 'off_');
			this.set('src', oldSrc );
	 	}
	);
	
});