function makeFullHeight(contentobj,containerobj,offsetpx){
	if(contentobj && containerobj){
		var contentHeight = document.getElementById(contentobj).offsetHeight;
		var newHeight = contentHeight + offsetpx;
		document.getElementById(containerobj).style.height = newHeight + 'px';
	}
}

function fullHt()
{
	var viewportwidth;
	var viewportheight;
	
// 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
	}
	
	var contentHeight = document.getElementById("bodyBG").offsetHeight;
	if (contentHeight < viewportheight)
	{	var addPx = (viewportheight - contentHeight) + 10;
		document.getElementById("expand").style.height = addPx + 'px';
	}
}