// Nutscrape 4
if (document.layers) {var NN4 = true;}
// var NN4 = (document.layers) ? true : false

// IE
if (document.all) {var IE = true;}
// var IE = (document.all) ? true : false

// DOM
if (document.getElementById && !document.all) {var DOM = true;}
// var DOM = (document.getElementById && !document.all) ? true : false

function getElement(id){
	
		if(NN4) {
			path = document.layers[id]
		} else if(IE) {
			path = document.all[id]
		} else {
			path = document.getElementById(id)
		} 
		//return the path to the css layer depending upon the browser type
		return path; 
}

function init() {
	getElement('menu1').style.display='none';
	getElement('menu2').style.display='none';
	getElement('menu3').style.display='none';
	}