The JavaScript code to do this is as follows:
check = new netscape.ldap.beans.LDAPIsMember(); check.setHost( document.input.host.value ); check.setPort( parseInt(document.input.port.value) ); check.setGroup( document.input.group.value ); check.setMember( document.input.member.value ); if ( check.isMember() ) alert( document.input.member.value " is a member of " + document.input.group.value ); else showError(); or you can pass all parameters in the call itself: check = new netscape.ldap.beans.LDAPIsMember(); if ( check.isMember( document.input.host.value, parseInt(document.input.port.value), "", "", document.input.group.value, document.input.member.value ) ) ...