var viewportheight;
var viewportwidth;
 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
if (typeof window.innerWidth != 'undefined'){ 
	viewportwidth = window.innerWidth
	viewportheight = window.innerHeight

}

// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth !=0) { 
	viewportwidth = document.documentElement.clientWidth, 
	viewportheight = document.documentElement.clientHeight 
}

 // older versions of IE

else { 
	viewportwidth = document.getElementsByTagName('body')[0].clientWidth, viewportheight =
document.getElementsByTagName('body')[0].clientHeight 
}
function setHeight() {
	element = document.getElementById("bottomlines");
	container = document.getElementById("containerdiv");
	var containerheight = container.offsetHeight;
	var elementheight = element.offsetHeight;
//	alert("entering function" + "containerheight= " + containerheight + "viewportheight= " + viewportheight + " " + "elementheight =" + elementheight);
	if (containerheight <= viewportheight){
		var h = (viewportheight - containerheight) + "px";
//		alert(h);
		element.style.height = h;
	}
	else {element.display = no;
	alert("viewport is smaller than containerdiv")
	}
}
//window.onload = function(){
//	setHeight();};

//window.onresize = function(){
//	setHeight();};