function ltrim(oldStr) {
	var i = 0;
	var onlySpaces = 'y';

	while (onlySpaces == 'y') {
		if (oldStr.substring(i,i+1) != ' ') {
				onlySpaces = 'n';
				return(oldStr.substring(i,oldStr.length));
		}
		i++;
	}
}


function rtrim(oldStr) {
	var i = oldStr.length;
	var onlySpaces = 'y';

	while (onlySpaces == 'y') {
		if (oldStr.substring(i-1,i) != ' ') {
			onlySpaces = 'n';
			return(oldStr.substring(0,i));
		}
		i--;
	}
}

function trim(oldStr) {
	return(rtrim(ltrim(oldStr)));
}