navx=function(){
		var nav = document.getElementById('nav');
		var LIs = nav.getElementsByTagName('li');
		for(i=0; i<LIs.length; i++){
			if(LIs[i].ul=LIs[i].getElementsByTagName('ul')[0]){
				LIs[i].onmouseover=function(){
					this.ul.style.display='inline';
				}
				LIs[i].onmouseout=function(){
					this.ul.style.display='none';
				}
			}
		}
	}
	if (window.attachEvent) {
		window.attachEvent("onload", navx);
	} else {
		onload=navx;
	}