function toggleMe(a){
  var e=document.getElementById(a);
  if(!e)return true;
  if(e.style.display=="none"){
    e.style.display="block"
  } else {
    e.style.display="none"
  }
  return true;
}

/* THIS IS THE MAIN ASYNC (AJAX) FUNCTION.
 ALL AJAX METHODS JUST REQUIRE TWO FUNCTIONS ON TOP OF THIS ONE   */
function GetXmlHttpObject(handler)
{ 
    var objXmlHttp=null

    if (navigator.userAgent.indexOf("Opera")>=0)
    {
        alert("This example doesn't work in Opera") 
        return 
    }
    if (navigator.userAgent.indexOf("MSIE")>=0)
    { 
        var strName="Msxml2.XMLHTTP"
        if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
        {
            strName="Microsoft.XMLHTTP"
        } 
        try
        { 
            objXmlHttp=new ActiveXObject(strName)
            objXmlHttp.onreadystatechange=handler 
            return objXmlHttp
        } 
        catch(e)
        { 
            alert("Error. Scripting for ActiveX might be disabled") 
            return 
        } 
    } 
    if (navigator.userAgent.indexOf("Mozilla")>=0)
    {
        objXmlHttp=new XMLHttpRequest()
        objXmlHttp.onload=handler
        objXmlHttp.onerror=handler 
        return objXmlHttp
    }
}