var newWindow;
function popup(URL,width,height) 
{
	if(!newWindow || newWindow.closed )
	{
		newWindow = window.open(URL, 
                        'script','toolbar=0,scrollbars=yes,location=no,statusbar=no,menubar=no,resizable=yes,dependent=yes,width='+width+',height='+height+',left=60,top=60');
    newWindow.focus();
	}
	else
	{
		newWindow.resizeTo(width+12,height+30);
    newWindow.focus();
	}
}