A sample _javascript of JS code in Web Ads

In some web ads provided in the JS code can be injected into the code, and then monitor a variety of elements,
The following example is to monitor the input of the Baidu input box value, and then display it,

Copy Code code as follows:

;(function ()
{

function Myfn ()
{
var Ssk=document.getelementbyid ("kw");
var Ssz=ssk.value;
alert (SSZ);
}

var btn = document.getElementById ("su");
Btn.addeventlistener ("click", Myfn,false);

This reads the value of the cookie and then invokes an AJAX upload to the local server.

})();

This way so that the ads JS code can monitor the content, and you can read the cookie information for the current page, and then execute the AJAX code to upload the local data to your server, so that when the ad is opened, you can push some ads to the current site based on the information from the previous site.