//String prototype supplements
String.prototype.trim = function () {
    return this.replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1"); 
};
String.prototype.supplant = function (o) { 
    return this.replace(/{([^{}]*)}/g, 
        function (a, b) {  
            var r = o[b];
            return typeof r === "string" ? 
                r : a; 
        }
    ); 
};