function new_window(url)
        {
        	link = window.open(url,"Link","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=400,height=400,left=450,top=150");
        }

    function open_window(url, width, height)
        {
		var left = (screen.width - width) / 2;
		var top  = (screen.height - height) / 2;
		var properties = 'height='+height+',width='+width+',left='+left+',top='+top+',toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1';
        	link = window.open(url, "Link", properties);
		if (!link.opener) { link.opener = window; }
		link.window.focus();
        }

    function confirmSubmit()
	{
	    var agree=confirm("Are you sure?");
	    if (agree) {
		return true;
	    } else {
		return false;
	    }
	} // function confirmSubmit()