$(function(){//添加数组IndexOf方法if (!Array.prototype.indexOf){Array.prototype.indexOf = function(elt /*, from*/){var len = this.length >>> 0;var from = Number(arguments[1]) || 0;from = (from < 0)? Math.ceil(from): Math.floor(from);if (from < 0)from += len;for (; from < len; from++){if (from in this && this[from] === elt)return from;}return -1;};}//getOwnPropertyNames keys 方法if(!Object.getOwnPropertyNames || !Object.keys){Object.keys = Object.getOwnPropertyNames = function(temp){var A = [];for(var key in temp){A.push(key);}return A;}}//forEach 方法if ( !Array.prototype.forEach ) {  Array.prototype.forEach = function forEach( callback, thisArg ) {  var T, k;  if ( this == null ) {  throw new TypeError( "this is null or not defined" );  }  var O = Object(this);  var len = O.length >>> 0;   if ( typeof callback !== "function" ) {  throw new TypeError( callback + " is not a function" );  }  if ( arguments.length > 1 ) {  T = thisArg;  }  k = 0;  while( k < len ) {  var kValue;  if ( k in O ) {  kValue = O[ k ];  callback.call( T, kValue, k, O );  }  k++;  }  };  }  //filter 方法if (!Array.prototype.filter){Array.prototype.filter = function(fun /*, thisArg */){"use strict";if (this === void 0 || this === null)throw new TypeError();var t = Object(this);var len = t.length >>> 0;if (typeof fun !== "function")throw new TypeError();var res = [];var thisArg = arguments.length >= 2 ? arguments[1] : void 0;for (var i = 0; i < len; i++){if (i in t){var val = t[i];// NOTE: Technically this should Object.defineProperty at//       the next index, as push can be affected by//       properties on Object.prototype and Array.prototype.//       But that method's new, and collisions should be//       rare, so use the more-compatible alternative.if (fun.call(thisArg, val, i, t))res.push(val);}}return res;};}
})