function setjs() {
 if(navigator.product == 'Gecko') {
   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('Please enter a valid nickname');
   document.loginform.Nickname.value = nick.replace(/[^A-Za-z0-9\[\]\{\}^\\\|\_\-`]/g, '');
   return false;
}