/*
	==================================================================
	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));
		}


	
	function checkRegexp(pattern_, str) {
		//if (str==null)
		//    return false;
		var pattern = new RegExp(pattern_);
		return (pattern.test(str));
	}