function scrollingDetector()
{	
	var Ypos;		
	if (navigator.appName == "Microsoft Internet Explorer")
	{
		Ypos = window.document.body.scrollTop;
				
	}
	else
	{
		Ypos = window.pageYOffset;		
	}
	//alert(window.document.body.scrollTop);
	return Ypos;
};
function doModal(div)
{
	var Ytotal = scrollingDetector() + 100;
	document.getElementById(div).style.display = '';
	document.getElementById(div).style.top = Ytotal + "px";
};
function closeModal(div)
{
	document.getElementById(div).style.display = 'none';
};