<?php echo $this->form; ?>
      <div id="zend-progressbar-container" style="width:400px;">
        <div id="progressbar"></div>

        <div id="zend-progressbar-done"></div>
      </div>

      <iframe src="" id="long-running-process" name="long-running-process" width="100%"></iframe>

<?php $this->inlineScript()->captureStart();?>
function Zend_ProgressBar_Update( data ) {
    jQuery( '#progressbar' ).progressbar( { value: data.percent } );
    jQuery( '#zend-progressbar-done' ).html(
        '<p>current : ' + data.current + ' / ' + data.max
        + ' - elapsed time : ' + data.timeTaken + ' / remaining time : '
        + data.timeRemaining + 'sec</p>' );
}

jQuery( function() {
    jQuery( '#progressbar' ).progressbar( { disabled: true } );
} );
<?php $this->inlineScript()->captureEnd();?>