function setjs() {
 if(navigator.product == 'Gecko' || (window.opera && document.childNodes)) {
   document.loginform["interface"].value = 'mozilla';
 }else if(window.opera && document.childNodes) {
   document.loginform["interface"].value = 'opera7';
 }else if(navigator.appName == 'Microsoft Internet Explorer' &&
    navigator.userAgent.indexOf("Mac_PowerPC") > 0) {
    document.loginform["interface"].value = 'konqueror';
 }else if(navigator.appName == 'Microsoft Internet Explorer' &&
 document.getElementById && document.getElementById('ietest').innerHTML) {
   document.loginform["interface"].value = 'ie';
 }else if(navigator.appName == 'Konqueror') {
    document.loginform["interface"].value = 'konqueror';
 }else if(window.opera) {
   document.loginform["interface"].value = 'opera';
 }
}

function nickvalid() {
   var nick = document.loginform.Nickname.value;
   if(nick.match(/^[A-Za-z0-9\[\]{\}^\\|\_\-`]{1,32}$/))
      return true;
   alert('Bitte gebt einen validen Nick ein.');
   document.loginform.Nickname.value = nick.replace(/[^A-Za-z0-9\[\]\{\}^\\|\_\-`]/g, '');
   return false;
}
document.write("<form method='post' action='http://webchat.d-t-net.de/cgi-bin/cgiirc/irc.cgi' name='loginform' onsubmit='setjs();return nickvalid()'>");
document.write("<input type='hidden' name='interface' value='nonjs' />");
document.write("<input type='hidden' name='Server' value='irc.wakka.de' />");
document.write("<div style='text-align:center;'><table border='0' cellpadding='5' cellspacing='0' style='margin:auto;'>");
document.write("<tr><td colspan='2' align='center' bgcolor='#c0c0dd'><b>CGI:IRC Login</b></td></tr>");
document.write("<tr><td align='right' bgcolor='#f1f1f1'>Nickname</td><td align='left' bgcolor='#f1f1f1'><input type='text' name='Nickname' value='Webchatter' /></td></tr>");
document.write("<tr><td align='right' bgcolor='#f1f1f1'>Channel</td><td align='left' bgcolor='#f1f1f1'>");
document.write("<select name='Channel'>");
document.write("<option>#c3f2m</option>");
document.write("</select>");
document.write("</td></tr>");
document.write("<tr><td align='left' bgcolor='#d9d9d9'></td><td align='right' bgcolor='#d9d9d9'>");
document.write("<input type='submit' value='Login' style='background-color: #d9d9d9' />");
document.write("</td></tr></table></div></form>");
document.write("<div style='text-align:center;'><small id='ietest'><a href='http://cgiirc.sourceforge.net/'>CGI:IRC</a> 0.5.3 (2003/10/29)<br />");
document.write("</small></div>");