String.prototype.trim = function() {
a = this.replace(/^\s+/, '');
return a.replace(/\s+$/, '');
};

String.prototype.ucwords = function() {
    // http://kevin.vanzonneveld.net
    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +   improved by: Waldo Malqui Silva
    // +   bugfixed by: Onno Marsman
    return (this+'').replace(/^(.)|\s(.)/g, function ( $1 ) { return $1.toUpperCase ( ); } );
};
String.prototype.addCommas = function() {
	var x = (this + '');
	x = x.split('.');
	var x1 = x[0];
	var x2 = x.length > 1 ? '.' + x[1] : '';
	var rgx = /(\d+)(\d{3})/;
	while (rgx.test(x1)) {
		x1 = x1.replace(rgx, '$1' + ',' + '$2');
	}
	return x1 + x2;
}