/**
     * 加载js和css文件
     * @param     jsonData.path        前缀路径
     * @param     jsonData.url        需要加载的js路径或css路径
     * @param     jsonData.type        需要加载的类型 js或css
    */
     function loadWriteFiles(jsonData)
     {
       jsonData.path = jsonData.path != undefined ? jsonData.path : \"\";
       if(jsonData.type == \"js\")
       {
        document.writeln(\"<script type=\'text/javascript\' src=\'\"+ jsonData.path + jsonData.url+\"\'></script>\");
       }
       else if(jsonData.type == \"css\")
       {
        document.writeln(\"<link rel=\'stylesheet\' href=\'\"+jsonData.path + jsonData.url+\"\' type=\'text/css\' />\");
       }
     }
     
     /**
     * 加载js或css到head中
     * @param     jsonData.path        前缀路径
     * @param     jsonData.url        需要加载的js路径或css路径
     * @param     jsonData.type        需要加载的类型 js或css
     */
     function loadFilesToHead(jsonData)
     {
       jsonData.path = jsonData.path != undefined ? jsonData.path : \"\";
       if(jsonData.type == \"js\")
       {
         var _js = document.createElement(\"script\");
         _js.setAttribute(\"type\", \"text/javascript\");
         _js.setAttribute(\"src\", jsonData.path + jsonData.url);
         _js.onload = _js.onreadystatechange=function(){ 
           if(!this.readyState||this.readyState==\'loaded\'||this.readyState==\'complete\'){ 
             if(\"function\" == typeof(jsonData[\"callback\"]) && jsonData[\"callback\"]){
                jsonData[\"callback\"].call(this);
             }
           } 
           _js.onload=_js.onreadystatechange=null; 
         } 
         document.getElementsByTagName(\"head\")[0].appendChild(_js);//追加到head标签内
       }
       else if(jsonData.type == \"css\")
       {
         var _css = document.createElement(\"link\");
         _js.setAttribute(\"type\", \"text/css\");
         _css.setAttribute(\"rel\", \"stylesheet\");
         _css.setAttribute(\"href\", jsonData.path + jsonData.url);
         document.getElementsByTagName(\"head\")[0].appendChild(_css);//追加到head标签内
       }
     }

var uiLoad = uiLoad || {};

(function($, $document, uiLoad) {
  \"use strict\";

  var loaded = [],
  promise = false,
  deferred = $.Deferred();

  uiLoad.load = function (srcs) {
    srcs = $.isArray(srcs) ? srcs : srcs.split(/\\s+/);
    if(!promise){
      promise = deferred.promise();
    }

   $.each(srcs, function(index, src) {
    promise = promise.then( function(){
      return src.indexOf(\'.css\') >=0 ? loadCSS(src) : loadScript(src);
    } );
   });
   deferred.resolve();
   return promise;
  };

  var loadScript = function (src) {
    if(loaded[src]) return loaded[src].promise();

    var deferred = $.Deferred();
    var script = $document.createElement(\'script\');
    script.src = src;
    script.onload = function (e) {
      deferred.resolve(e);
    };
    script.onerror = function (e) {
      deferred.reject(e);
    };
    $document.body.appendChild(script);
    loaded[src] = deferred;

    return deferred.promise();
  };

  var loadCSS = function (href) {
    if(loaded[href]) return loaded[href].promise();

    var deferred = $.Deferred();
    var style = $document.createElement(\'link\');
    style.rel = \'stylesheet\';
    style.type = \'text/css\';
    style.href = href;
    style.onload = function (e) {
      deferred.resolve(e);
    };
    style.onerror = function (e) {
      deferred.reject(e);
    };
    $document.head.appendChild(style);
    loaded[href] = deferred;

    return deferred.promise();
  }

})(jQuery, document, uiLoad);