Hi, I'm working on a web application and for the first time I'm using Ajax. The problem I encouter is that when requesting a php file I get a fatal error because all the includes that I have done in my index.php file are not longer known in my requested file. like this: my index.php include("cMyClass.php"); my form.php => form.js req.open(POST,actionhandle.php,true); req.send("name=myname"); my actionhandle.php $myClass = new cMyClass(); When calling the actionhandle through my index file then cMyClass is known, but calling the actionhandle file directly with ajax then the class is not known. Is there a solution for this problem? I already tried calling the index file from ajax but then my requestText is not what I want. I get my complete DOM structure as requestText. Thank you in advance.