function LTrim(str)
{
   var whitespace = new String(" \t\n\r");
   var s = new String(str);

   if (whitespace.indexOf(s.charAt(0)) != -1) {
      var j=0, i = s.length;

      // Iterate from the far left of string until we
      // don't have any more whitespace...
      while (j < i && whitespace.indexOf(s.charAt(j)) != -1)
         j++;
      
	  // Get the substring from the first non-whitespace
      // character to the end of the string...
      s = s.substring(j, i);
   }
   return s;
}

function RTrim(str)
{
   var whitespace = new String(" \t\n\r");
   var s = new String(str);

   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
      var i = s.length - 1;
      while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)
         i--;

      // Get the substring from the front of the string to
      // where the last non-whitespace character is...
      s = s.substring(0, i+1);
   }
   return s;
}

function Trim(str)
{
   return RTrim(LTrim(str));
}