//add remove scroll bars
var ScrollTop;
function noScrollIE() {
	document.body.scroll = "no";
	document.body.style.overflow = 'hidden';
	//scroll(0, 275);//ScrollTop = document.body.scrollTop;
}
function scrollIE() {
	document.body.scroll = "yes";
	document.body.style.overflow = 'scroll';
}
function noScrollNS() {
	document.width = window.innerWidth;
	document.height = window.innerHeight;
}
function scrollNS() {
	document.width = 1000;
	document.height = 1000;
}
//do the work
function LockPage() {
	if (browser = "Internet Explorer") {
		noScrollIE();
	}else if (browser = "Netscape Navigator") {
		noScrollNS();
	}
}
function UnLockPage() {
	if (browser = "Internet Explorer") {
		scrollIE();
	} else if (browser = "Netscape Navigator") {
		scrollNS();
	}
}