var objAberto=null;
var rules = {

	'ul#parent li' : function (obj) {
						obj.onmouseover = function() {
							
							if(objAberto != null) {
								objAberto.className = objAberto.className.replace('over','')
							}
							this.className += ' over'
							objAberto = this
						}
						obj.onmouseout = function() {
							objAberto.className = objAberto.className.replace('over','')
						}
					}
}

function pause(millis)
{
	date = new Date();
	var curDate = null;

	do { var curDate = new Date(); }
	while(curDate-date < millis);
} 


//Behaviour.register(rules);