ROLLOVERS = {
	
	start: function(){
		
		rov = KRNL.getElementByClassEnh('btroll');
		
		for(var i=0;i<rov.length;i++){
			rov[i].onmouseover =  ROLLOVERS.changeState;
				rov[i].onmouseout =  ROLLOVERS.restoreState;
						
		}
	
	},
	
	changeState: function() {
		this.src= this.getAttribute('src').substring(0, this.getAttribute('src').length-4) + '-over.gif';
	},
	
	restoreState: function() {
		this.src= this.getAttribute('src').substring(0, this.getAttribute('src').length-9) + '.gif';	
	}
	

}

if(document.getElementsByTagName) KRNL.addEvent(window, 'load', ROLLOVERS.start, false);