function init() {
   hr2div();
}


function hr2div() {
   if(document.attachEvent && !window.opera) { //only the bad one again ;)
      for(i=document.getElementsByTagName('hr').length-1;i>=0;i--) {
         var hrdiv = document.createElement("div");
         hrdiv.className='hr';
         document.getElementsByTagName('hr')[i].parentNode.replaceChild(hrdiv, document.getElementsByTagName('hr')[i]);
      }
   }
}

window.onload=init;