var http_request = false;
function makeRequest(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;
     }
	 parameters = parameters + "&dummy=" + new Date().getTime();
     http_request.onreadystatechange = alertContents;
     http_request.open('GET', url + parameters, true);
     http_request.send(null);
}

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('forum_log').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }

   function get(obj) {
      var getstr = "?";
      for (i=0; i<obj.childNodes.length; i++) {
         if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
			if (obj.childNodes[i].type == "password") {
               getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
            }
            if (obj.childNodes[i].type == "checkbox") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               } else {
                  getstr += obj.childNodes[i].name + "=&";
               }
            }
            if (obj.childNodes[i].type == "radio") {
               if (obj.childNodes[i].checked) {
                  getstr += obj.childNodes[i].name + "=" + obj.childNodes[i].value + "&";
               }
            }
         } 
      }
      makeRequest('http://www.walkinginsquares.com/ajax/jaxin.php', getstr);
   }