prods=new Array;
prodsn=0;
prodst=new Array;
prodstn=0;

function init() {
	document.getElementById("menu").style.top = (window.innerHeight ? window.innerHeight : document.body.clientHeight) - 300;
	for (i=1 ; i<=3 ; i++) document.getElementById("submenu" + i).style.top = (window.innerHeight ? window.innerHeight : document.body.clientHeight) - 300;
}

function openSub(num) {
	// first hide all
	for (i=1 ; i<=3 ; i++) document.getElementById("submenu" + i).style.visibility = "hidden";
	document.getElementById("submenu" + num).style.visibility = "visible";
}