function string_trim() {
	return this.replace(/(^\s*)|(\s*$)/g, "");
}

function string_right(count) {
	if( this == "" || count < 0 )
		return "";

	if( count >= this.length )
		return this;

	return this.substr(this.length - count, count);
}

String.prototype.trim = string_trim;
String.prototype.right = string_right;