function GetXmlHttpObject(handler) { 
    var objXmlHttp=null
    
    if (window.XMLHttpRequest) {
        objXmlHttp=new XMLHttpRequest()
        objXmlHttp.onload=handler
        objXmlHttp.onerror=handler
        objXmlHttp.onreadystatechange = handler
        return objXmlHttp
    } else if (window.ActiveXObject) {
        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 
        } 
    } 
} 

function updateElement(srcPath, dstId) {
    var url = srcPath;
    xmlHttp=GetXmlHttpObject(doUpdateElement)
    xmlHttp.dstId = dstId;
    xmlHttp.open("GET", url , true)
    xmlHttp.send(null)
    return false;
}
function doUpdateElement() {
    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
      document.getElementById(xmlHttp.dstId).innerHTML = xmlHttp.responseText;
    }
}

function submitEmail(email, pathToDir) {
  updateElement(pathToDir+'_emailSignup.php?email='+email+'&path='+pathToDir, 'signupForm')
}