var isNN = (navigator.appName.indexOf("Netscape")!=-1);
      
function autoTab(input,len, e) {
   var keyCode = (isNN) ? e.which : e.keyCode; 
   var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
   if(input.value.length >= len && !containsElement(filter,keyCode)) {
      input.value = input.value.slice(0, len);
      input.form[(getIndex(input)+1) % input.form.length].focus();
   }
         
   function containsElement(arr, ele) {
      var found = false, index = 0;
      while(!found && index < arr.length)
      if(arr[index] == ele)
         found = true;
      else
         index++;
      return found;
   }
         
   function getIndex(input) {
      var index = -1, i = 0, found = false;
      while (i < input.form.length && index == -1)
         if (input.form[i] == input)index = i;
         else i++;
      return index;
   }

return true;
}

// open the client email with the specified address
function sendEmail(encodedEmail)
{
  // do the mailto: link
  location.href = "mailto:" + decodeEmail(encodedEmail);
}

// return the decoded email address
function decodeEmail(encodedEmail)
{
  // holds the decoded email address
  var email = "";

  // go through and decode the email address
  for (i=0; i < encodedEmail.length;)
  {
    // holds each letter (2 digits)
    var letter = "";
    letter = encodedEmail.charAt(i) + encodedEmail.charAt(i+1)

    // build the real email address
    email += String.fromCharCode(parseInt(letter,16));
    i += 2;
  }
  
  return email;
}

// display the email address in the statusbar
function displayStatus(encodedEmail)
{
  window.status = "mailto:" + decodeEmail(encodedEmail);
}

// clear the statusbar message
function clearStatus()
{
  window.status = "";
}