IE error using an ActionLink to update a Zone

I have a problem when I use a HTML component that uses JavaScript, in a Zone. Sample:

<t:zone t:id="testZone" id="testZone">
<t:delegate to="testblock" />
</t:zone>

<a t:type="actionlink" t:id="refreshZone" href="#" t:zone="testZone">Refresh Zone</a>

<t:block t:id="testblock">
<t:form t:id="testForm" >
<t:textfield t:clientId="field1" t:id="field1" t:value="field1" onClick="alert('HI');"/>
<t:submit t:id="submit1" t:value="1" />
</t:form>
</t:block>

If I enter in MS Explorer 7 or 8 and run this code (Click "Refresh Zone"), the explorer fail with one syntactic error.

Thanks