function createRequestObject() 
{

   var req;
	
   if(window.XMLHttpRequest){
	  req = new XMLHttpRequest();
   } else if(window.ActiveXObject) {
	  req = new ActiveXObject("Microsoft.XMLHTTP");
   } else {
	  req = NULL;
	  alert('Probleem met het aanmaken van hetXMLHttpRequest object');
   }
	
   return req;
	
}

var http = createRequestObject();

function sendRequestGet(url, ask) 
{
   if (ask == 1)
   {
	   if(confirm("Weet u zeker dat u deze actie wilt uitvoeren?"))
	   {
		   http.open('get', url);
		   http.onreadystatechange = handleResponseSubmit;
		   http.send(null);
	   }
   }
   else
   {
	   http.open('get', url);
	   http.onreadystatechange = handleResponseSubmit;
	   http.send(null);
   }
}

function sendRequestPost(url) 
{
	http.open('post', url);
	http.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	http.onreadystatechange = handleResponseSubmit;
	xmlHttp.send(query);
}

function handleResponseSubmit() 
{

   if(http.readyState == 4 && http.status == 200){
	  if(http.responseText) {
		 document.getElementById("submit_resultaten").innerHTML = http.responseText;
	  } else {
		 document.getElementById("submit_resultaten").innerHTML = "   ";
	  }

   } else {
	  document.getElementById("submit_resultaten").innerHTML = "   ";
   }

}