var pageHeight;
var pageWidth;
var mykid;

function showCurtain()
{
/*
	pageHeight = (document.height !== undefined) ? document.height : document.body.offsetHeight;
	pageWidth = (document.width !== undefined) ? document.width : document.body.offsetWidth;
	
	if (document.body.clientHeight > pageHeight)
	{
		pageHeight = document.body.clientHeight;
	}

	if (window.innerHeight)
	{
		pageHeight = (window.innerHeight > pageHeight ? window.innerHeight : pageHeight);
	}
*/

    pageHeight = (document.height !== undefined) ? document.height : document.body.offsetHeight;
    pageWidth = (document.width !== undefined) ? document.width : document.body.offsetWidth;
    
    if (document.documentElement.clientHeight > pageHeight) 
        pageHeight = document.documentElement.clientHeight;
    if (pageWidth < 980) 
        pageWidth = 980;


	var curtain_div = document.getElementById('divCurtain');
	curtain_div.style.height = (Math.ceil(pageHeight)) + "px";
	curtain_div.style.width = Math.ceil(pageWidth) + "px";
	curtain_div.style.display = "block";
	curtain_div.style.zIndex = "150";
}

function showPopup(name)
{
	mykid = document.getElementById(name);
	//mykid.style.position = "absolute";
	//mykid.style.top = "20px";//findPosY(document.getElementById("divCurtain")) + "px";
	//mykid.style.left = "400px"; //(Math.ceil(pageWidth)/2 - parseInt(mykid.style.width)/2) + "px";
	mykid.style.zIndex = "200";
	mykid.style.display = "block";
}

function hideCurtain()
{
	document.getElementById('divCurtain').style.display = "none";
	if (mykid)
	{
		mykid.style.display = "none";
	}
}