Secondly, please be sure to use code tags when posting code to the forums. Unformatted or unindented code is extremely hard to read and many people that might be able to help you will just move along to posts that are easier to read. Please click this link ⇒ UseCodeTags ⇐ for more information.
Properly indented and formatted code greatly increases the probability that your question will get quicker, better answers.
On eother thing, please be sure to take the time to compose descriptive subjects for your posts. You will attract people who will can give you better and faster answers when your posts have good, descriptove subjects. For more information, please click this link ⇒ UseAMeaningfulSubjectLine.
Using a title such as "error" isn't going to attract the attention of those who can best help you.
You can change your subject line by clicking the button on your post.
Best of luck with your question.
subject: error : xmlhttp.responseXML.documentElement is null or not an object.