Accordion .js how-to *not* display the first item

This is more a javascript question than wordpress-specific but I am using javascript to display a very simple accordion style menu on a page. The most js I know is how to copy and paste so I’m wondering how to *not* display the first item in the list as expanded when the page initially loads. This is the code:

// Hide dd only in DOM-capable browsers.
if (document.getElementsByTagName) document.write("<style type='text/css'>@media screen{ dl.accordeon dd {display: none;} }</style>");

var accordeonDL = {
 item : 0, // define the first displayed definition description
 setup : function(){
  if (!document.getElementsByTagName) return;
  var el = document.getElementsByTagName("DL");
  for (var i = 0; i < el.length; i++) {
   if (el[i].className.indexOf("accordeon") == -1) continue;
   accordeonDL.makeLinks(el[i]);
   // show  'item' on load
   var getDT = el[i].getElementsByTagName("DT")[accordeonDL.item];
   getDT.innerHTML = getDT.getElementsByTagName("A")[0].innerHTML;
   getDT.className = "accordeon-active";
   el[i].getElementsByTagName("DD")[accordeonDL.item].style.display = "block";
   }
 },
 makeLinks : function(dl){
  el = dl.getElementsByTagName("DT");
  for (var i = 0; i < el.length; i++) {
   if (!el[i].getElementsByTagName("A")[0]){
    el[i].innerHTML = "<a onclick='accordeonDL.showDD(this);' href='javascript:;'>" + el[i].innerHTML + "</a>";
    el[i].className = "";
    }
   }
 },
 showDD : function(a){
  dt = a.parentNode; dl = dt.parentNode; dd = dt.nextSibling;
  if (dd.nodeType != 1) dd = dd.nextSibling;
  el = dl.getElementsByTagName("DD")
  for (var i = 0; i < el.length; i++) {
   el[i].style.display = "none";
   }
  dd.style.display = "block";
  accordeonDL.makeLinks(dl);
  dt.innerHTML = a.innerHTML;
  dt.className = "accordeon-active";
 }
}
 /* End Accordeon Definition List */

//Onload Handling
var oldonload=window.onload;if(typeof window.onload!='function'){
window.onload=accordeonDL.setup;
}else{window.onload=function(){oldonload();
accordeonDL.setup();}}
  /* setup faster by deleting these lines and adding
         <script type="text/javascript">accordeonDL.setup();</script>
         before the closing body tag in your HTML */

Please ignore the misspelling. It’s bothering me as well. I know that I need to either delete or change something in that first chunk but I don’t know what.