function openPopup(selector)
{
	var w = $(selector).outerWidth();
	var h = $(selector).outerHeight();
	var docw = $(document).width();
	var doch = $(document).height();

	var diffw = docw - w;
	var diffh = doch - h;
	var left = diffw /2;
	var top = diffh / 2;
	$(selector).css("left", left);
	$(selector).css("top", "10%");
	$(selector).fadeIn(1000);
}

function closePopup(selector, redir )
{
	$(selector).fadeOut(400);
	if ( typeof(redir) == "string" )
		location.href = redir;
}