//compact, stand-alone version of trim()
function trim(sVal)
{
	sTrimmed = "";
				
	for (i = 0; i < sVal.length; i++)
	{
		if (sVal.charAt(i) != " "
			&& sVal.charAt(i) != "\f"
			&& sVal.charAt(i) != "\n"
			&& sVal.charAt(i) != "\r"
			&& sVal.charAt(i) != "\t")
		{
			sTrimmed = sTrimmed + sVal.charAt(i);
		}
	}

	return sTrimmed;
}

//modularized version of trim()
function trim(sVal)
{
	return rightTrim(leftTrim(sVal));
}

function leftTrim(sVal)
{
	sTrimmed = "";
	bFoundNonBlank = false;
				
	for (i = 0; i < sVal.length; i++)
	{
		if (bFoundNonBlank
			|| (sVal.charAt(i) != " "
			&& sVal.charAt(i) != "\f"
			&& sVal.charAt(i) != "\n"
			&& sVal.charAt(i) != "\r"
			&& sVal.charAt(i) != "\t"))
		{
			sTrimmed = sTrimmed + sVal.charAt(i);
			bFoundNonBlank = true;
		}
	}

	return sTrimmed;
}

function rightTrim(sVal)
{
	sTrimmed = "";
	bFoundNonBlank = false;
				
	for (i = sVal.length-1; i >= 0; i--)
	{
		if (bFoundNonBlank
			|| (sVal.charAt(i) != " "
			&& sVal.charAt(i) != "\f"
			&& sVal.charAt(i) != "\n"
			&& sVal.charAt(i) != "\r"
			&& sVal.charAt(i) != "\t"))
		{
			sTrimmed = sTrimmed + sVal.charAt(i);
			bFoundNonBlank = true;
		}
	}

	return reverseString(sTrimmed);
}

function reverseString(sVal)
{
	sReverse = "";

	for (i = sVal.length; i >= 0; i--)
	{
		sReverse += sVal.charAt(i);
	}

	return sReverse;
}

//stand-alone version added to String object
String.prototype.trim = function()
{

	sVal = this;
	sTrimmed = "";
				
	for (i = 0; i < sVal.length; i++)
	{
		if (sVal.charAt(i) != " "
			&& sVal.charAt(i) != "\f"
			&& sVal.charAt(i) != "\n"
			&& sVal.charAt(i) != "\r"
			&& sVal.charAt(i) != "\t")
		{
			sTrimmed = sTrimmed + sVal.charAt(i);
		}
	}

	return sTrimmed;
}