javascript force pop-up window code-cross-blocking_advertising code

ForceWindow.iclass.js code is as follows (use, explanation, Relevant instructions are all in comments):
/**
* ============================================== ========
* This program can be freely copied, modified, and disseminated, and the following information may not be deleted. Commercial use must be approved by the original author.
* ============================================== =
* Program name: ForceWindow(@iClass.JS)
* Description: "Breakthrough" ad blocking software and force pop-up windows.
* Version: 1.0.0
* Creation time: January 19, 2004
* Modification time: January 19, 2004
* File name: ForceWindow.iclass.js
* Author: Zhong Zhong
* Email address: zz@iecn.net zz315@163.com
* Copyright statement: This program belongs to iClass.JS, and the copyright belongs to the author.
* For details about the iClass plan, please see: http://www.iecn.net/forum/showthread.php?threadid=14811
* ================= ================================
*/
/**
* Define ForceWindow class constructor
* No parameters
* No return value
*/
function ForceWindow ()
{
this.r = document. documentElement;
this.f = document.createElement("FORM");
this.f.target = "_blank";
this.f.method = "post";
this.r .insertBefore(this.f, this.r.childNodes[0]);
}
/**
* Define the open method
* Parameters sUrl: String, the URL of the window to be opened.
* No return value
*/
ForceWindow.prototype.open = function (sUrl)
{
this.f.action = sUrl;
this.f.submit();
}
/**
* Instantiate a ForceWindow object and use it as a sub-object of the window object to facilitate calling
* After definition, it can be used like this: window.force.open("URL");
*/
window.force = new ForceWindow();
/**
* Windows that pop up using this program will not be blocked by ad blocking software, but there is a drawback: you cannot customize the appearance like you can with window.open pop-up windows.
* Of course you can also instantiate a ForceWindow object before use:
* var myWindow = new ForceWindow();
* Use it like this:
* myWindow.open("URL");
* Browsers that have passed the test of this program: IE 5, Firefox 1.0, Mozilla 1.7.5, Netscape 7.2, Opera 7.23
* Friendly reminder: If you use this program to force pop-up advertisements, please provide more Think about how the viewer feels!
*/