var popupwindow;
function popUp(name, filename)
{
	if ( (typeof popupwindow == "object") && (popupwindow.closed != true) )
	{
		popupwindow.location.href = filename;
		popupwindow.focus();
	}
	else
	{
		popupwindow = window.open(filename, name,"height=400,width=625,scrollbars=yes,resizable=no");
		popupwindow.focus();
	}
}