Is it possible to submit a form using ajax?

I have a form with sever inputs and when submited, it writes the input values in a jsp file. I would like to submit the form using ajax in the background. I don't want the user to be directed to that page.

the only way I thought I could do it is in ajax is to call the jsp with the parameter
something like calling
req.open("GET", "insert.jsp?par am="document.fo rm.input.value1 +"&param2=...,t rue)...

I have a log that I have to rewrite...the log's line look like this :

01-01-2008 windowsuser GET index.html?page visited=google
01-01-2008 windowsuser GET index.html?page visited=yahoo\
......

I need to replace the index.html?page visited=google with google. basically replace the link accessed with the parameter(pagev isited). so after runing the sed command the lines should look like
...