/*** js和css按需加载 ***/
function loadJsCss(url, callback ){// 非阻塞的加载 后面的js会先执行var isJs = /\/.+\.js($|\?)/i.test(url) ? true : false;function onloaded(script, callback){//绑定加载完的回调函数if(script.readyState){ //iescript.attachEvent('onreadystatechange', function(){if(script.readyState == 'loaded' || script.readyState == 'complete'){script.className = 'loaded';callback && callback.constructor === Function && callback();}});}else{script.addEventListener('load',function(){script.className = "loaded";callback && callback.constructor === Function && callback();}, false); }}if(!isJs){ //加载cssvar links = document.getElementsByTagName('link');for(var i = 0; i < links.length; i++){//是否已加载if(links[i].href.indexOf(url)>-1){ return; }}var link = document.createElement('link');link.type = "text/css";link.rel = "stylesheet";link.href = url;var head = document.getElementsByTagName('head')[0]; head.insertBefore(link,head.getElementsByTagName('link')[0] || null );}else{ //加载jsvar scripts = document.getElementsByTagName('script');for(var i = 0; i < scripts.length; i++){//是否已加载if(scripts[i].src.indexOf(url)>-1 && callback && (callback.constructor === Function) ){ //已创建scriptif(scripts[i].className === 'loaded'){//已加载
                    callback();}else{//加载中
                    onloaded(scripts[i], callback);}return; }}var script = document.createElement('script');script.type = "text/javascript";script.src = url; document.body.appendChild(script);onloaded(script, callback); }
}

// 表单验证插件 动态加载
function loadValidator(callback){// 加载nicevalidator插件
loadJsCss("/css/nicevalidator.css");
loadJsCss("/js/nicevalidator.js", callback);
}

// 组件动态加载
function loadComponent(callback){// 加载自定义组件
loadJsCss("/css/component.css");
loadJsCss("/js/component.js", callback);
}

(function(){$.fn.validator = function(){var args = arguments, self = this;loadValidator(function(){//~~~初始状态fn.validator会请求js和css, 加载后的回调函数重写 fn.validator 为正确的方法$.fn.validator.apply(self, args);})}var fnames = ['Tab',"SiceSlider","SiceLvSelect","SiceSelect"];$.each(fnames, function(i,fname){//~~~同理 回调函数重写接口为正确的函数$[fname] = function(){var args = arguments;loadComponent(function(){ var Foo = function(){}; Foo.prototype = $[fname].prototype; var foo = new Foo(); // 需要new 的组件，这样获取参数对象$[fname].apply(foo,args);  });}});
})(jQuery)