var ie4 = document.all&&navigator.userAgent.indexOf('Opera')==-1;
var ns6 = document.getElementById&&!document.all;
var ns4 = document.layers;

function SetSourcePage()
{
    var queryString = document.location.search.substring(1);
    if (queryString!=''){
	    GetElement('icontent', parent).src = queryString;
	}
}
function ShowPopUp(elementName, parent, shadowSize)
{
	var popup = GetElement(elementName, parent);
    var shadow = GetElement(elementName + 'Shadow', parent);
    if (!shadowSize)
        shadowSize = 5;
    
	if (popup.style.visibility == 'hidden')
	{

		popup.style.visibility = 'visible';
		shadow.style.visibility = 'visible';
	    shadow.style.top = popup.offsetTop + shadowSize;
	    shadow.style.left = popup.offsetLeft + shadowSize;
	    shadow.style.width = popup.clientWidth;
	    shadow.style.height = popup.clientHeight;
	}
	else
	{
		popup.style.visibility = 'hidden';
		shadow.style.visibility = 'hidden';
	}
}
function GetElement(elementName, parent)
{
    if (!parent)
	    return ie4? document.all[elementName] : ns6? document.getElementById(elementName) : ns4? document[elementName] : null;
    else
    	return ie4? window.parent.document.all[elementName] : ns6? window.parent.document.getElementById(elementName) : ns4? window.parent.document[elementName] : null;
}
function GetMouseY(e)
{
    if (!e) e = event;
    
    return ie4? e.clientY : ns6? e.pageY : ns4? e.pageY : null;
}