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

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

function trim(sString){
	sString = lTrim(sString);
	sString = rTrim(sString);
	return sString;
}