Ie8 operation error

[viaco2ove]

Problem solving way:

//In the Array on the prototype chain extension indexOf method
(function($){
if(!Array.prototype.indexOf){
Array.prototype.indexOf = function(val){
var value = this;
for(var i =0; i < value.length; i++){
if(value[i] == val) return i;
}
return -1;
};
}
...})(jQuery);