liujiangfeng

if( !Function.prototype.bind ){
  Function.prototype.bind = function( obj ){
    var args =[], that = this;
    if( arguments.length > 1){
      args = [].slice.call(arguments , 2);
    }
    
    return  function (arg){
      return that.apply( obj , args.cancat([].slice.call.arg));
    }

liujiangfeng

var cssStyleDeclaration = window.getComputedStyle(document.body, null),

liujiangfeng

var qs = (function(a) {
    if (a == "") return {};
    var b = {};
    for (var i = 0; i < a.length; ++i)
    {
        var p=a[i].split('=', 2);
        if (p.length == 1)
            b[p[0]] = "";
        else
            b[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));