Functions类，一个Javascript的函数加法类，将两个函数加起来，顺序执行

 1 var Functions = {
 2     oFunctions: null,
 3     add: function (oFunc, oNewFunc) {
 4         var oNew = function () {
 5             oFunc();
 6             oNewFunc();
 7         };
 8         return oNew;
 9     }
10 };

 1 function one() {
 2     alert(1);
 3 }
 4 
 5 function two() {
 6     alert(2);
 7 }
 8 
 9 one = Functions.add(one, two);
10 one();