Javascript to display text/image ads from remote server

Hi, I am looking for a javascript/ ajax programmer who could help me with the following or similar requirement: 1. I need a compact javascript code which could be placed on any website. 2. This javascript will actually fetch contents from remote server and display it on the website. (The javascript will pass a php url with parameters to the server and display the fetched contents once this php gets executed on server [login to view URL] is what I expect the javascript to do according to my idea.) However, you are free to provide the inputs on how a javascript could be used to display contents from a remote server. [Important]: --> Information needs to be passed from client to server. --> The data will be sent to client from server based on this information passed. --> We should be able to place this javascript independently in the body part of the webpage Let me know about how this can be achieved. (The implementation of this is to display ads from MY ad serving platform to the publisher's websites. Currently they are placed using a php code. However, to make it more universal, I want it to be used through javascript.) YOU ARE FREE TO PROVIDE YOUR INPUTS IN MY Private Message area about how the above important marked points could be achieved. You also need to provide me a brief about how this could be achieved. You will be paid 100% only after successful project completion.