var xmlhttp

    function tryEvent(str)
{
    if (str.length==0)
	{
            document.getElementById("zimbraupdate").innerHTML="Need an EID here...";
            return;
        }
    xmlhttp=GetXmlHttpObject();
    if (xmlhttp==null)
	{
            alert ("Your browser does not support XMLHTTP!");
            return;
	}
    var url="zimbra.php";
    url=url+"?eid="+str;
    url=url+"&sid="+Math.random();
    xmlhttp.onreadystatechange=stateChanged;
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
}

function stateChanged()
{
    if (xmlhttp.readyState==4)
	{
            document.getElementById("zimbraupdate").innerHTML=xmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
    if (window.XMLHttpRequest)
	{
            // code for IE7+, Firefox, Chrome, Opera, Safari                       
            return new XMLHttpRequest();
	}
    if (window.ActiveXObject)
        {
            // code for IE6, IE5                                                   
            return new ActiveXObject("Microsoft.XMLHTTP");
        }
    return null;
}

function gup( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}