[javaScript][Resolved] Object doesn't support this property or method indexOf ie8

Since Internet Explorer which are lower than Internet Explorer 9 doesn’t have an indexOf() function for array. After I search found a method from stackoverflow by Nick Craver  works nice for me:

Error message:

Object doesn't support this property or method.

And solution is Add these Code before you use the indexOf() function before you use that in IE8:

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;
  };
}

Example code for my case:

Reference:
http://stackoverflow.com/questions/3629183/why-doesnt-indexof-work-on-an-array-ie8