jQuery(function(){
    var headline = jQuery('h1.documentFirstHeading:first').text();
    var new_headline = jQuery('<h1 class="documentFirstHeading"><span>' + headline + '</span></h1>');
    var target = jQuery('#portal-documentheading');
    target.html(new_headline);
    var rendered_height = jQuery('.documentFirstHeading', target).height();
    target.css('height', rendered_height);


});