var http_request = false;
		   function makePOSTRequest(url, parameters) {
			  http_request = false;
			  if (window.XMLHttpRequest) { // Mozilla, Safari,...
				 http_request = new XMLHttpRequest();
				 if (http_request.overrideMimeType) {
					// set type accordingly to anticipated content type
					//http_request.overrideMimeType('text/xml');
					http_request.overrideMimeType('text/html');
				 }
			  } else if (window.ActiveXObject) { // IE
				 try {
					http_request = new ActiveXObject("Msxml2.XMLHTTP");
				 } catch (e) {
					try {
					   http_request = new ActiveXObject("Microsoft.XMLHTTP");
					} catch (e) {}
				 }
			  }
			  if (!http_request) {
				 alert('Cannot create XMLHTTP instance');
				 return false;
			  }
			  
			  http_request.onreadystatechange = alertContents;
			  http_request.open('POST', url, true);
			  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			  http_request.setRequestHeader("Content-length", parameters.length);
			  http_request.setRequestHeader("Connection", "close");
			  http_request.send(parameters);
		   }

		   function alertContents() {
			  if (http_request.readyState == 4) {
				 if (http_request.status == 200) {
					result = http_request.responseText;
					document.getElementById('ing-code').value = result;            
				 } else {
					alert('There was a problem with the request.');
				 }
			  }
		   }
		   
		   function get(obj) {
			  var poststr = "http://www.fotoalbum.nl/assign_code.php?" +
								"ingnaam=" + encodeURI( document.getElementById("ing-naam").value) +
								"&ingemail=" + encodeURI( document.getElementById("ing-email").value) ;
			  makePOSTRequest(poststr, '');
		   }