function whatbrowser() {
    if(document.layers){
        thisbrowser="NN4";
    }
    if(document.all){
         thisbrowser="IE"
    }
    if(!document.all && document.getElementById){
         thisbrowser="NN6";
    }
    return thisbrowser;
}


function ltrim(str, delims) {
   var whitespace;
   if (delims==null)
     whitespace = new String(" \t\n\r");
   else
     whitespace = new String(delims);

   var s = new String(str);

   if (whitespace.indexOf(s.charAt(0)) != -1) {
      // We have a string with leading blank(s)...

      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, delims) {
   var whitespace;
   if (delims==null) {
     whitespace = new String(" \t\n\r");
   }
   else {
     whitespace = delims;
   }

   // We don't want to trip JUST spaces, but also tabs,
   // line feeds, etc.  Add anything else you want to
   // "trim" here in Whitespace
   var s = new String(str);

   if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {
      // We have a string with trailing blank(s)...

      var i = s.length - 1;       // Get length of string

      // Iterate from the far right of string until we
      // don't have any more whitespace...
      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, delims) {
    var ltrimmedval = ltrim(str, delims);
   return rtrim(ltrimmedval, delims);
}