// JavaScript Document
// Added by MP Haagsma, 31 March 2005.
// Some useful javascript string manipulation functions
//  leftTrim, rightTrim, allTrim
//The leftTrim JavaScript function takes one parameter, which is the string that needs to be trimmed. The function then loops through each of the characters of this string, starting with the first one. If the current character in the loop is a single white space " ", the function removes it from the string and continues with the loop. The loop goes on until it finds character, which is different than a single white space or until it reaches the end of the string. After the function exits the loop, it returns the left trimmed string.

function leftTrim(sString)
{
	while (sString.substring(0,1) == ' ')
	{
		sString = sString.substring(1, sString.length);
	}
	return sString;
}


//The rightTrim() JavaScript function works in exactly the same way, except that it trims the white spaces at the end of the string:

function rightTrim(sString)
{
	 
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

//The allTrim() JavaScript function combines both leftTrim() and rightTrim() functions:

function trimAll(sString)
{
	while (sString.substring(0,1) == ' ')
	{
	sString = sString.substring(1, sString.length);
	}
	
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
	sString = sString.substring(0,sString.length-1);
	}
return sString;
}