function goToMeetingW() {
    jUrl = "https://www.gotomeeting.com/join/";
    meetID = document.joinMeetingW.MeetingID.value;
    //document.joinMeetingW.action = jUrl + meetID;
    var newWindow = window.open(jUrl + meetID, "_blank", 'width=1024, height=600, status=yes, resizable=yes, menubar=yes, toolbar=yes, location=yes, directories=yes, scrollbars=yes');
    newWindow.focus();
}

document.write('<table cellpadding="0" cellspacing="0" border="0" bgcolor="#FFFFFF">');
document.write('<form action="" method="post" name="joinMeetingW">');
document.write('<tr>');
document.write('<td><img src="images/meetNowTopWh.gif" width=158 height=26></td></tr>');
document.write('<tr><td align="center"><input type="text" name="MeetingID" size="10"></td></tr>');
document.write('');
document.write('<tr><td><input type="image" name="btnClick" src="images/meetNowBotWh.gif" border="0" height="86" width="158" onClick="return goToMeetingW();"></td></tr>');
document.write('</form>');
document.write('</td>');
document.write('</tr>');
document.write('</table>');