//------------------------------------------------------------- 
// LTrim(string) : Returns a copy of a string without 
//                 leading spaces. 
//------------------------------------------------------------- 
function LTrim(str) 
/* 
   PURPOSE: Remove leading blanks from our string. 
   IN: str - the string we want to LTrim 
*/ 
{ 
   var whitespace = new String(" \t\n\r"); 

   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; 
} 

//------------------------------------------------------------- 
// RTrim(string) : Returns a copy of a string without trailing 
//                 spaces. 
//------------------------------------------------------------- 
function RTrim(str) 
/* 
   PURPOSE: Remove trailing blanks from our string. 
   IN: str - the string we want to RTrim 

*/ 
{ 
   // 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 whitespace = new String(" \t\n\r"); 

   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; 
} 

//------------------------------------------------------------- 
// Trim(string) : Returns a copy of a string without leading or 
//                trailing spaces 
//------------------------------------------------------------- 
function Trim(str) 
/* 
   PURPOSE: Remove trailing and leading blanks from our string. 
   IN: str - the string we want to Trim 

   RETVAL: A Trimmed string! 
*/ 
{ 
   return RTrim(LTrim(str)); 
} 

//------------------------------------------------------ 
// Checks string and returns true if it contains a value 
//      Parameter: input string 
//      Return type: boolean 
//------------------------------------------------------ 
function isFilled(sInput) { 
  var sHold = sInput.value; 
  sHold = Trim(sHold); 

  if (sHold.length < 1) { 
    return false; 
  } 
  return true; 
}