ns = (document.layers)? true:false
ie = (document.all)? true:false

function showObj(obj)
{
	if (ns) obj.visibility="show"
	if (ie) obj.visibility="visible"
}

function hideObj(obj)
{
	if (ns) obj.visibility="hide"
	if (ie) obj.visibility="hidden"
}

function popup(path) // Displays an HTML file in a pop-up window.
{
	options="width=750,height=500,left=25,top=10,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1";
	window.open(path,null,options);
}

function showAd(path)
{
	window.open(path,null,"height=350,width=450,left=200,top=200,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=vertical,resizable=yes");
}