function getXMLHttp() {
var xmlHttp
try {
  //Firefox, Opera 8.0+, Safari
  xmlHttp = new XMLHttpRequest();
  }
  catch(e) {
    //Internet Explorer
    try {
    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch(e) {
      try {
      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch(e){
      //alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
return xmlHttp;
}

function makeReq(div) {
var xmlHttp = getXMLHttp();
xmlHttp.onreadystatechange = function(){
  if(xmlHttp.readyState == 4) {
    HandleResponse(xmlHttp.responseText,div);
    }
  }
xmlHttp.open("GET", "/bar.cgi", true); 
xmlHttp.send(null);

}
function makeEF(div) {
var div='EF';
var xmlHttp = getXMLHttp();
xmlHttp.onreadystatechange = function(){
  if(xmlHttp.readyState == 4) {
    HandleResponse(xmlHttp.responseText,div);
    }
  }
xmlHttp.open("GET", "/EF.cgi", true); 
xmlHttp.send(null);

}

function HandleResponse(response,div) {
document.getElementById(div).innerHTML = response;
}