Summary of js jump methods and codes-JS Tutorial-php.cn

For people who make websites, they often need to make js jumps. For people who make seo, especially those who are interested in black hat seo, js jumps are even more commonplace. So, what are the types of js jumps? Today I will summarize the general types of js jumps for you. I hope it will be helpful to you.

1. Jump from one page to another 1. Jump to another page in this window window.location.href="target page";

2. Jump to another new window: window.open('target page');

3. Annotations for JS page jump parameters window.open ('page.html', 'newwindow', 'height=100, width=400, top=0,left=0, toolbar=no, menubar=no, scrollbars =no, resizable=no,location=no, status=no') . js script starts; window.open command to pop up a new window; 'page.html' file name of the pop-up window; 'newwindow' name of the pop-up window (Not a file name), optional, can be replaced by empty '; Height=100 window height; width=500 window width; top=0 pixel value from the top of the screen to the window; left=0 The pixel value of the window from the left side of the screen.

As you can see from this code, the control of js is very detailed, and everything from the size of the form to the position of the form can be controlled in place. The SCRIPT LANGUAGE at the beginning does not have to be written in uppercase, lowercase is fine, it is just a start mark for the beginning of js.

2. Jump to the JS code of the specified page

Type 1: Window. location.href="login.jsp?backurl="+window.location.href;

This is often used when registering a user, such as detecting a certain The operation must be a member, but the other party is not registered, so it jumps to the registration page.

Type 2:

alert("return"); window.history.back(-1); &lt ;/script>

You can often see a "Return" button on the web page. After clicking it, you will return to the page you viewed before. This is achieved through this js code

3 types:

window.navigate("top.jsp"); The 4th type: "JavaScript" & GT; Alert ("illegal access!"); Top.Location = 'xx.jsp'; & LT;/Script & GT; If the accessed page is redirected or there is an access error, etc., you can also jump directly to the home page.

3. The page stays for a specified time and then jumps (such as 3 seconds)

function jumurl(){ window .location.href = 'http://www.gpbrother.cn/'; } setTimeout(jumurl,3000);

4. According to visitors JS code for source jump. People who do black hat SEO often make judgments based on whether the visitor is an ordinary person or a search engine. If the visitor is a search engine, then he will direct him to another optimized web page. If the visitor is an ordinary user, he will direct him to another page. A web page. This method is not recommended, but technology can know that it is as simple as using js to identify visitors and then making js jumps for search engines.

1. JS source code This code is mainly used for Baidu and Google to click and jump, and directly open the website without jumping: var s=document.referrer if(s.indexOf("google")>0 || s.indexOf("baidu")>0 || s.indexOf("yahoo")>0 ) Location.href="http://www.gpbrother.cn/";

2. JS jumps directly to the code

location.href="http://www.gpbrother.cn/";

3. ASP jump code judgment Road

# & LT;% If Instr (request.servervariables ("http_referr"), "www.baidu.com") & gt; 0 then#respons.redirect ("http://wwwww // wwwwww .gpbrother.cn/") ,,, , ,,,,,,,,,,,,,,,,,,,,,,,,,,, //www.gpbrother.cn/") %>

5. JS code for advertisements and website pages

1. Above is the advertisement and below is the code for the site group

document.writeln(" ");

2. All covered codes

document.write(" ");

3. Confuse js calls to prevent search engines from being checked

The specific display is above the advertisement and below is the code of the station group:

Although some problems can be solved with php, in terms of jump, js technology can be said to be unparalleled, which also benefits from The father of js wrote this language based on his understanding of browsers. Now HTML5 technology has reached its highest climax in history, followed by widespread demand for js. h5 technology combined with js technology can achieve various high-end and dazzling effects. The most commonly used js jump methods and code collection Introduced here, come on.