// email kireol at yahoo.com
// autoMask - an adaption of anyMask
// <input type=text name=ssn onkeypress="return autoMask(this,event, '###-##-####');">
// this will force #'s, not allowing alphas where the #'s are, and auto add -'s
function autoMask(field, event, sMask) {
        //var sMask = "**?##?####";

        var KeyTyped = String.fromCharCode(getKeyCode(event));
        var targ = getTarget(event);
        keyCount = targ.value.length;

	if(keyCount == sMask.length)
	{
		return false;
	}
      if ((sMask.charAt(keyCount+1) != '#') && (sMask.charAt(keyCount+1) != 'A' ) )
      {
         field.value = field.value + KeyTyped + sMask.charAt(keyCount+1);
         return false;
      }

        if (sMask.charAt(keyCount) == '*')
                return true;

        if (sMask.charAt(keyCount) == KeyTyped)
        {
                return true;
        }

        if ((sMask.charAt(keyCount) == '#') && isNumeric(KeyTyped))
           return true;

        if ((sMask.charAt(keyCount) == 'A') && isAlpha(KeyTyped))
         return true;

      if ((sMask.charAt(keyCount+1) == '?') )
      {
         field.value = field.value + KeyTyped + sMask.charAt(keyCount+1);
         return true;
      }
      if (KeyTyped.charCodeAt(0) < 32) return true;
    return false;
}
 function getTarget(e) {
  // IE5
   if (e.srcElement) {
        return e.srcElement;
   }
    if (e.target) {
        return e.target;
   }
 }

  function getKeyCode(e) {
 //IE5
 if (e.srcElement) {
        return e.keyCode
 }
  // NC5
  if (e.target) {
   return e.which
  }
 }

 function isNumeric(c)
{
        var sNumbers = "01234567890";
        if (sNumbers.indexOf(c) == -1)
                return false;
        else return true;

}

function isAlpha(c)
{
        var lCode = c.charCodeAt(0);
        if (lCode >= 65 && lCode <= 122 )
          {
                return true;
         }
        else
        return false;
}

function isPunct(c)
{
        var lCode = c.charCodeAt(0);
        if (lCode >= 32 && lCode <= 47 )
          {
                return true;
         }
        else
        return false;

}

function currencyFormat(fld, milSep, decSep, e) {
  var sep = 0;
  var key = '';
  var i = j = 0;
  var len = len2 = 0;
  var strCheck = '0123456789';
  var aux = aux2 = '';
  var whichCode = (window.Event) ? e.which : e.keyCode;
  if (whichCode == 13) return true;  // Enter
  if (whichCode == 8) return true;  // Delete (Bug fixed)
  key = String.fromCharCode(whichCode);  // Get key value from key code
  if (strCheck.indexOf(key) == -1) return false;  // Not a valid key
  len = fld.value.length;
  for(i = 0; i < len; i++)
    if ((fld.value.charAt(i) != '0') && (fld.value.charAt(i) != decSep)) break;
  aux = '';
  for(; i < len; i++)
    if (strCheck.indexOf(fld.value.charAt(i))!=-1) aux += fld.value.charAt(i);
  aux += key;
  len = aux.length;
  if (len == 0) fld.value = '';
  if (len == 1) fld.value = '0'+ decSep + '0' + aux;
  if (len == 2) fld.value = '0'+ decSep + aux;
  if (len > 2) {
    aux2 = '';
    for (j = 0, i = len - 3; i >= 0; i--) {
      if (j == 3) {
        aux2 += milSep;
        j = 0;
      }
      aux2 += aux.charAt(i);
      j++;
    }
    fld.value = '';
    len2 = aux2.length;
    for (i = len2 - 1; i >= 0; i--)
      fld.value += aux2.charAt(i);
    fld.value += decSep + aux.substr(len - 2, len);
  }
  return false;
}

function currencyFormatx(atexto, milSep, decSep) {
  var sep = 0;
  var key = '';
  var i = j = 0;
  var len = len2 = 0;
  var strCheck = '0123456789';
  var aux = aux2 = '';
	if (atexto.indexOf(decSep) == -1){atexto = atexto + '00'};
	if (atexto.indexOf(decSep) == atexto.length - 2){atexto = atexto + '0'};
  len = atexto.length;
  for(i = 0; i < len; i++)
    if ((atexto.charAt(i) != '0') && (atexto.charAt(i) != decSep)) break;
  aux = '';
  for(; i < len; i++)
    if (strCheck.indexOf(atexto.charAt(i))!=-1) aux += atexto.charAt(i);
  aux += key;
  len = aux.length;
  if (len == 0) atexto = '';
  if (len == 1) atexto = '0'+ decSep + '0' + aux;
  if (len == 2) atexto = '0'+ decSep + aux;
  if (len > 2) {
    aux2 = '';
    for (j = 0, i = len - 3; i >= 0; i--) {
      if (j == 3) {
        aux2 += milSep;
        j = 0;
      }
      aux2 += aux.charAt(i);
      j++;
    }
    atexto = '';
    len2 = aux2.length;
    for (i = len2 - 1; i >= 0; i--)
      atexto += aux2.charAt(i);
    atexto += decSep + aux.substr(len - 2, len);
  }
  return atexto;
}