Filter problem in apex 4.0 simple interactive form application

Question

I am using apex 4.0, in the interactive form, under the action button, select filter, filter type is column, has 3 drop downs
column, opterator and expression,
you click the drop down for expression, nothing happens, no error message, nothing
please help,
thanks,
Doug

Answer 1

I did what you said here is the bottom of the code i saw in foxfire debug
</script>
<script type="text/javascript">
</script>
<ul id="apexir_ACTIONSMENU" class="dhtmlSubMenu" style="position: absolute; top: 326px; left: 305px; display: none;" htmldb:listlevel="2">
<li>
</li>
<li class="dhtmlMenuSep">
</li>
<li>
</li>
<li class="dhtmlSubMenuN" title="Rows Per Page">
</li>
<ul id="apexir_ROWS_PER_PAGE_MENU" class="dhtmlSubMenu" htmldb:listlevel="4" style="display: none;">
</ul>
<li class="dhtmlSubMenuN" title="Format">
</li>
<ul id="apexir_FORMAT_MENU" class="dhtmlSubMenu" htmldb:listlevel="4" style="display: none;">
</ul>
<li class="dhtmlMenuSep">
</li>
<li>
</li>
<li class="dhtmlMenuSep">
</li>
<li>
</li>
</ul>
<div id="ui-datepicker-div" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all ui-helper-hidden-accessible"></div>
</body>
</html>