function handleHttpResponse(uebergabe) {
    if (http.readyState == 4) {
    	if (http.responseText.indexOf('invalid') == -1) { 
    	  result = http.responseText;
		  if (uebergabe == "active") {
		  }
		  inarbeit = false;
		}
    }
}
var inarbeit = false;


function javaActivated(){
   if (!inarbeit && http) {
         http.open("GET", "fileadmin/scripts/javaactivated.php", true);
         http.onreadystatechange = function() { handleHttpResponse("active");}
         inarbeit = true;
         http.send(null);
    }
}

function createRequestObject() {
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}
var http = createRequestObject();