//
//25px for header
var _frame = '<frameset rows="100%,*" border="0" frameborder="no">\n' +
            // '<frame src="headerlinks.php" scrolling="no" noresize>\n' + 
			 '<frame src="' + _url + '" scrolling="auto" noresize>\n' + 
             '<frame src="about:blank">\n' +
             '</frameset>\n';

document.write(_frame);