function expand(eventid,ptype)
{
var xmlhttp;
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {
  // code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
else
  {
  alert("Your browser does not support XMLHTTP!");
  }

xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==3)
  {
  document.getElementById(eventid).innerHTML="<br><img src=\"ajax/ajax-loader.gif\">";
  }
if(xmlhttp.readyState==4)
  {
  if(ptype=="teams")
  {
  document.getElementById('td1' + eventid).style.visibility='hidden';
  document.getElementById('td2' + eventid).style.visibility='hidden';
  document.getElementById('td3' + eventid).style.visibility='hidden';
  document.getElementById('td4' + eventid).style.visibility='hidden';
  }
  if(ptype=="users")
  {
  document.getElementById('td1' + eventid).style.visibility='hidden';
  document.getElementById('td2' + eventid).style.visibility='hidden';
  document.getElementById('td3' + eventid).style.visibility='hidden';
  }
  document.getElementById(eventid).innerHTML=xmlhttp.responseText;
  }
}
xmlhttp.open("GET","ajax/first/expand.php?event=" + eventid + "&ptype=" + ptype,true);
xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
xmlhttp.send(null);
}