/*Header Begin

$Author: Hem.balla $

$Workfile: trim.js $

$Modtime: 8/01/05 7:56p $

$Revision: 1 $

$NoKeywords: $

Change History: Put the issue ID and your description of the changes here

Header Ends*/

// JavaScript Functions Written by:
//    Scott Mitchell
//    mitchell@4guysfromrolla.com
//    http://www.4GuysFromRolla.com

function LTrim(str)
/***
        PURPOSE: Remove leading blanks from our string.
        IN: str - the string we want to LTrim

        RETVAL: An LTrimmed string!
***/
{
	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;
}

function RTrim(str)
/***
        PURPOSE: Remove trailing blanks from our string.
        IN: str - the string we want to RTrim

        RETVAL: An RTrimmed string!
***/
{
	// 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 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));
}