lots of rubbish here
<FORM ACTION="test.cgi" METHOD="POST"
ENCTYPE="multipart/form-data">

<input type="checkbox" name="option_and" value="AND">ANDfilter<br>
<input type="checkbox" name="option_or" value="OR">ORfilter<br>
      <INPUT TYPE="submit" NAME="Submit" VALUE="Submit">
      </FORM>