While using observe_field , pls take a note that never use ‘with’ => “‘regCode=’ + $(‘region’).value” instead of that use :’with’ => “‘regCode=’+value” as the former method is incompatible with lower versions of firefox
echo(observe_field(‘region’, array(‘update’ => ‘updateCountry’, ‘url’ => ‘default/updateCountry?className=DrpDwnBox194FL’,’script’=>true, ‘with’ => “‘regCode=’ + $(‘region’).value”, ‘loading’ => “Element.show(‘loadingId’);Element.hide(‘updateCountry’)”, ‘complete’ => “Element.hide(‘loadingId’);Element.show(‘updateCountry’)”)));
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echo(observe_field(‘region’, array(‘update’ => ‘updateCountry’, ‘url’ => ‘default/updateCountry?className=DrpDwnBox194FL’,’script’=>true, ‘with’ => “‘regCode=’+value”, ‘loading’ => “Element.show(‘loadingId’);Element.hide(‘updateCountry’)”, ‘complete’ => “Element.hide(‘loadingId’);Element.show(‘updateCountry’)”)));