<!--
function screen_height ()
{
	if (window.screen) return (screen.height);
	else if (navigator.javaEnabled ())
	{
		var toolkit = java.awt.Toolkit.getDefaultToolkit ();
		var screen_size = toolkit.getScreenSize ();
		return (screen_size.height);
	}
	return (0);
}

function screen_width ()
{
	if (window.screen) return (screen.width);
	else if (navigator.javaEnabled ())
	{
		var toolkit = java.awt.Toolkit.getDefaultToolkit ();
		var screen_size = toolkit.getScreenSize ();
		return (screen_size.width);
	}
	return (0);
}

function popup(URL,width,height)
{
	sheight = (((screen_height()-20)-height)/2);
	swidth = (screen_width() - width)/2;
	eval("page = window.open(URL, 'PopUp', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+width+",height= "+height+",left = "+swidth+",top ="+sheight+"');");
	page.main = self;
	page.focus();
	}
//-->