Newbie regexp question

[Paul Cohen]

Hi

I want to do a Emacs regexp search and replace on a HTML file containing
patterns like this:

<!--Test-->
...
<!--End of Test-->

Where "..." denotes a variable number of lines of HTML text.

I want to search for all occurrences of the above pattern and then
remove them from the HTML file!

I've tried a number of variants without any success. For example the
following regexp doesn't work:

<!--Test-->\(.*\n\)*<!--End of Test-->

/Paul