function MenuOn(x){ obj=document.getElementById("submenu"+x).style.visibility="visible";}
function MenuOff(x){ obj=document.getElementById("submenu"+x).style.visibility="hidden";}

function newWin(url,target) { var win_attr = 'width=550,height=500,left=0,top=0,toolbar=1,location=1,directories=1,status=1,menubar=1,resizable=1,scrollbars=1';
newWindow=open(url, target, win_attr);}

function backToTop() {
var x1 = x2 = x3 = 0;
var y1 = y2 = y3 = 0;
if (document.documentElement) {
x1 = document.documentElement.scrollLeft || 0;
y1 = document.documentElement.scrollTop || 0;
}
if (document.body) {
x2 = document.body.scrollLeft || 0;
y2 = document.body.scrollTop || 0;
}
x3 = window.scrollX || 0;
y3 = window.scrollY || 0;
var x = Math.max(x1, Math.max(x2, x3));
var y = Math.max(y1, Math.max(y2, y3));
window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
if (x > 0 || y > 0) {
window.setTimeout("backToTop()", 25);
}
}