var http_request = false;
  function makeRequest(url, parameters) {
    http_request = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
      http_request = new XMLHttpRequest();
      if (http_request.overrideMimeType) {
        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('GET', url + parameters, true);
    http_request.send(null);
    return true;
  }
  
  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);
      return true;
   }

  function alertContents() {
    if (http_request.readyState == 4) {
      if (http_request.status == 200) {
        result = http_request.responseText;
        document.getElementById('graphicform').innerHTML = result;            
      } else {
        document.getElementById('graphicform').innerHTML = "<div style=\"text-align: center;\">Sorry, an error occured!</div>";
        alert('Sorry, an error occured!');
      }
    }
  }
   
  function get(obj) {
    var getstr = "?";
    var yes = 0;
    var no = 0;
    var step = document.myform.step.value;
      if (eval("document.myform.answer" + "[0].checked") == true)
        yes=1;
      if (eval("document.myform.answer" + "[1].checked") == true)
        yes=0;
   getstr += "step=" + step + "&answer=" + yes;
    makeRequest('http://www.designinone.com/modules/wizard/ci_en.php', getstr);
  }
  
 function get2(obj) {
    var poststr = "naam=" + encodeURI( document.getElementById("naam").value ) +
                  "&bedrijfsnaam=" + encodeURI( document.getElementById("bedrijfsnaam").value );
    makePOSTRequest('http://www.designinone.com/modules/wizard/post_en.php', poststr);
 }