var isNN = (navigator.appName.indexOf("Netscape")!=-1);

 function autoTab(input,len, e, counttomove) {
  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);
    //alert((getIndex(input) + counttomove) % input.form.length);
    //alert(getIndex(input));
    //alert (input.form.length);
    input.form[(getIndex(input) + counttomove)].focus();
    input.form[(getIndex(input) + counttomove)].select();
  }


  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;
}


//Moves the focus of the current control to the next defined control if the max length has been reached.
function Tab(currentField, nextField)
{
   //Exclude Shift and Tab or Shift Tab
  if (!(event.keyCode==9 || event.keyCode==16 || (event.keyCode==9 && event.shiftKey)))
    {
        // Determine if the current field's max length has been reached.
        if (currentField.value.length == currentField.maxLength)
        {
            // Retreive the next field in the tab sequence, and give it the focus.

            document.getElementById(nextField).focus();
            document.getElementById(nextField).select();
        }
    }
}

//For land listviews auto tabbing.
function TextBox_Focus(txt,nextSibling) 
{

if ( (txt.readOnly) && nextSibling != '' ) { 
document.getElementById(nextSibling).focus();

} 

}

function nextTab(txt,maxLength,nextSibling) 
{
  if (txt.value.length == maxLength)
  {
   document.getElementById(nextSibling).select();
   document.getElementById(nextSibling).focus();
   
  }
}