/**/ if (!Array.prototype.filter) { Array.prototype.filter = function(fun /*, thisp */) { "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 thisp = arguments[1]; for (var i = 0; i < len; i++) { if (i in t) { var val = t[i]; // in case fun mutates this if (fun.call(thisp, val, i, t)) res.push(val); } } return res; }; } if (!Array.prototype.indexOf) { Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) { "use strict"; if (this == null) { throw new TypeError(); } var t = Object(this); var len = t.length >>> 0; if (len === 0) { return -1; } var n = 0; if (arguments.length > 0) { n = Number(arguments[1]); if (n != n) { // shortcut for verifying if it's NaN n = 0; } else if (n != 0 && n != Infinity && n != -Infinity) { n = (n > 0 || -1) * Math.floor(Math.abs(n)); } } if (n >= len) { return -1; } var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0); for (; k < len; k++) { if (k in t && t[k] === searchElement) { return k; } } return -1; } } function addGroupstageHTML(length) { $('