function nav(url,name,height,width,status)// Open a new special window
{
	name = (name != '' && name != 0)? name : 'new';
	height = height > 0 ? height : 520;
	width = width > 0 ? width : 770;
	name = window.open(url,name,"height=" + height + ",width=" + width + ",status=" + status + ",toolbar=" + status + ",menubar=" + status + ",location=" + status + ",scrollbars=1,resizable=1,directories=0");
	name.focus();
}

function popup(url,height,width)// Pop a notice window if it's never been opened before
{
	if (GetCookie('popped') == '')
	{
		nav(url,"popup",height,width,2);
		document.cookie = "popped=PopWindow";
	}
}

function GetCookie(Name)// Get cookie from client's machine
{
	var Str = Name + "=";
	if (document.cookie.length > 0 && document.cookie.indexOf(Str) != -1)
	{
		var StartPos = document.cookie.indexOf(Str);
		StartPos += Str.length;
		EndPos = document.cookie.indexOf(";", StartPos);
		if (EndPos == -1)
			EndPos = document.cookie.length;
		//alert(unescape(document.cookie.substring(StartPos, EndPos)));
		return unescape(document.cookie.substring(StartPos, EndPos));
	}
	else
		return '';
}