Add curry method to functions

function.curry.js

Function.prototype.curry = function(scope) {
    scope = scope || window;
    var cargs = [];
    for (var i=1, len = arguments.length; i < len; ++i) {
	cargs.push(arguments[i]);
    }
    var m = this;
    return function() {
	var args = [];
	for (var i=0, len = cargs.length; i < len; ++i) {
	    args.push(cargs[i]);
	}
	for (i=0, len = arguments.length; i < len; ++i) {
	    args.push(arguments[i]);
	}
	return m.apply(scope, args);
    };
}