function trim(str)
{
  return RTrim(LTrim(str));
}
function RTrim(str)
{
  // 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;
}


function LTrim(str)
{
  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;
}

var xmlHTTP=getreq();
function getreq()
{ // returns false if exists
	if(window.ActiveXObject)
	 { // if IE
		try
		 {
		    return new ActiveXObject("Msxml2.XMLHTTP");
	    }
	    catch(e)
	    {
		    try
		    {
		        return new ActiveXObject("Microsoft.XMLHTTP");
		    }
		    catch(e)
		    {
		        return;
		    }
		}
	}
	else if(window.XMLHttpRequest)
	{ // if Mozilla, Safari, etc.
		return new XMLHttpRequest();
	}
}