var xmlHttp

function showIrmas(str) { 
  xmlHttp=GetXmlHttpObject();
  if (xmlHttp==null) {
    alert ("Your browser does not support AJAX!");
    return;
  } 

  var url="getirmas.asp";
  url=url+"?q="+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("myDisplay").innerHTML=xmlHttp.responseText;
  }
}

function GetXmlHttpObject() {
  var xmlHttp=null;
  try {
    xmlHttp=new XMLHttpRequest();
  }
  catch (e) {
    try {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e) {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
  return xmlHttp;
}