Define variables in Struts 1.3

<bean:define id="bookActivityKey">${job.bookActivity.bookActivityKey}</bean:define>
<logic:equal name="bookActivityKey" value="9">
<![CDATA[1]]>
</logic:equal>
<logic:notEqual name="bookActivityKey" value="9">
<![CDATA[0]]>
</logic:notEqual>