Javascript 类、命名空间、代码组织代码

$(function () { 
pageJs.urls = [ 
'/', 'Index', 
]; 
pageJs.run(); 
}); 
//the functions include html elements. Ajax function also can be put here. 
var Common = { 
init: function () { 
alert('Common'); 
} 
}; 
//url--pages 
var Index = { 
init: function () { 
Common.init(); 
this.test(); 
this.test2(); 
alert(location.pathname); 
}, 
test: function () { 
alert('test'); 
} 
}; 
Index.test2 = function () { 
Index.test(); 
alert('test2'); 
} 
//should be remove to other js file, and load before this file. 
//the functions don't include any html elements. 
var Utils = { 
debug: function () { 
} 
}; 
var pageJs = { 
urls: [], 
run: function () { 
var urls = this.urls; 
alert(urls.length); 
if ((urls.length % 2) != 0) { 
throw "urls error"; 
} 
var len = urls.length / 2; 
for (var i = 0; i <= len; i = i + 2) { 
var pattern = new RegExp(urls[i], 'i'); 
if (pattern.test(location.pathname)) { 
eval(urls[i + 1] + ".init()"); 
break; 
} 
} 
} 
};