function startMenu(){
	
	if (document.getElementById){
		
		nav = document.getElementById('menu1');
		
		for (i=0; i<nav.childNodes.length; i++) {
			node = nav.childNodes[i];
			
			if (node.nodeName == 'LI') {
				
				node.onmouseover = function() {
					this.className = 'over';
				}
				node.onmouseout = function() {
				
					this.className = ""
				}
			}
		}
	}
}