var enlarging = false;
  function addEvent( obj, type, fn ) {
    if ( obj.attachEvent ) {
      obj['e'+type+fn] = fn;
      obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
      obj.attachEvent( 'on'+type, obj[type+fn] );
    } else
      obj.addEventListener( type, fn, false );
  }
  
  
  function onpubMouseOver0() {
    enlarging = true;
    var pubdiv = document.getElementById("divPubblicitaO");
    var pdh = pubdiv.clientWidth+10;
    pubdiv.style.width= pdh + "px";
    //checkScroll();
    if (pdh < 500) {
      window.setTimeout(onpubMouseOver0,10);
    } else {
      enlarging = false;
      pubdiv.style.width= "500px";
    }
  }
  function onpubMouseOut0() {
    if (! enlarging) {
      var pubdiv = document.getElementById("divPubblicitaO");
      var pdh = pubdiv.clientWidth-10;
      pubdiv.style.width= pdh + "px";
      //checkScroll();
    }
    if (pdh > 40) {
      window.setTimeout(onpubMouseOut0,10);
    } else {
      pubdiv.style.width= "40px";
    }
  }
    
  //addEvent(window,"load",initPubblicita);
  //addEvent(window,"scroll",checkScroll);
  var pubdiv = document.getElementById("divPubblicitaO");
  addEvent(pubdiv,"mouseover",onpubMouseOver0);
  addEvent(pubdiv,"mouseout",onpubMouseOut0);