var objects = document.getElementsByTagName("object");

for (var i=0; i<objects.length; i++)
    objects[i].outerHTML = objects[i].outerHTML;

 <!--
      function openWindow(html_stranka){
        msg = window.open(html_stranka,'detail',
		'toolbar=no,menubar=no,location=no,directories=no,scrollbars=no,resizable=no,status=no,width=600,height=420,top=20,left=20');
      }
 -->