function animazione_flash() {

      document.write("<object type='application/x-shockwave-flash' data='../img/top_base2.swf'width='836' height='150' id='mainMovie'> ");
      document.write("<param name='movie' value='../img/top_base2.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='opaque'/> ");
      document.write("</object> ");

}