var newwindow = '';
function popitup(url, height, width)
{
	if (!newwindow.closed && newwindow.location)
	{
		newwindow.location.href = url;
	}
	else
	{
		newwindow=window.open(url,'name','height=' + height + ',width=' + width + ',scrollbars, status=yes, resizable=yes');
		if (!newwindow.opener) newwindow.opener = self;
	}
	if (window.focus) {newwindow.focus()}
	return;
}