OpenMRS Lookup Expression

<ifMode mode="ENTER">
        &lt;lookup complexExpression="
        #set( $encounter = 0 )
        #set( $encounter = $fn.latestEncounter('8d5b27bc-c2cc-11de-8d13-0010c6dffd0f') )
        #if( $encounter != 0 )
        &lt;script type=&quot;text/javascript&quot;>
           if (window.location.href.indexOf('/module/htmlformentry/htmlForm.form?id=3') == -1)
           {
            // window.location=
        alert(window.location.host + &quot;://&quot; + window.location.host + openmrsContextPath + &quot;/htmlformentry/htmlFormEntry.form?patientId=$encounter.patientId&amp;encounterId=$encounter.encounterId&quot;);
           }
        &lt;/script>
        #end
        "/>
    </ifMode>