javascript add table content from xml

var e = document.getElementById("list2");
 var seldevs = xmlResponse.getElementsByTagName("device");
 var selvars = xmlResponse.getElementsByTagName("var");
 var selids = xmlResponse.getElementsByTagName("idvar");
 for(i = 0; i<selids.length; i++)
 {
  var tablebody;
  if(e.getElementsByTagName("tbody").length==0)
  {
   tablebody = document.createElement("tbody");
  }
  else
  {
   tablebody = e.getElementsByTagName("tbody")[0];
  }
  var newrow = document.createElement("tr");
  var c0 = document.createElement("td");
  c0.style.width="50%";
  var c1 = document.createElement("td");
  c1.style.width="50%";
  var c2 = document.createElement("td");
  c2.style.display = "none";
  c0.appendChild(document.createTextNode(seldevs[i].childNodes[0].nodeValue));
  c1.appendChild(document.createTextNode(selvars[i].childNodes[0].nodeValue));
  c2.appendChild(document.createTextNode(selids[i].childNodes[0].nodeValue));
  currentselectedvariables[i] = selids[i].childNodes[0].nodeValue;
  
  c0.className="standardTxt";
  c1.className="standardTxt";
  
  newrow.className="Row1";
  newrow.appendChild(c0);
  newrow.appendChild(c1);
  newrow.appendChild(c2);

  newrow.onclick= function(){selectedLineVar(this,"list2");return false;};
  
  tablebody.appendChild(newrow);
  if(e.getElementsByTagName("tbody").length!=0)
  {
   e.removeChild(e.getElementsByTagName("tbody")[0]);
  }
  e.appendChild(tablebody); 
  enableActionDataTransfer(); 
  selvarscount++;  
 }