How can I click on specific (x,y) coordinates on a web page? [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

Triggering a JavaScript click() event at specific coordinates

Translated question:

I'm looking for a method to programmatically click on a specific (x,y) coordinate on a web page.

Original question:

I have reviewed many codes in the internet about how to let the pointer mouse move and click but I did not find what I need example: there is a hyper link on (X=358,Y=13) of the page and it is get different every time you get visited the page I want any code html or PHP or JavaScript that I can put it through web page that let the cursor just click on that link that is on the coordination x,y and I need it to execute the command just when the some one open the web page don't tell me that I want redirection to specify URL no I said (it is get different every time you get visited) I just want click on specify coordination no matter who is开发者_如何学编程 URL.

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To put it simply, what you are trying to do isn't possible, because browsers specifically prevent you from doing this (for good security reasons).