var http_request = false;
   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
         }
      } 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) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('myspan').innerHTML = result;
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function get(obj) {
      var poststr = "to_topic=" + encodeURI( document.getElementById("to_topic").value ) +
                    "&is_new=" + encodeURI( document.getElementById("is_new").value ) +
                    "&to_post=" + encodeURI( document.getElementById("to_post").value );
      makePOSTRequest('postit.php', poststr);
   }
   
   function signup(obj) {
      var poststr = "s_username=" + encodeURI( document.getElementById("username").value ) +
                    "&s_password1=" + encodeURI( document.getElementById("password1").value ) +
                    "&s_password2=" + encodeURI( document.getElementById("password2").value ) +
                    "&s_email1=" + encodeURI( document.getElementById("email1").value ) +
                    "&s_email2=" + encodeURI( document.getElementById("email2").value ) +
                    "&s_first=" + encodeURI( document.getElementById("first").value ) +
                    "&is_post=" + encodeURI( document.getElementById("is_post").value ) +
                    "&s_last=" + encodeURI( document.getElementById("last").value );
      makePOSTRequest('signup.php', poststr);
   }
   
   function alpha(e) {
var k;
document.all ? k = parseInt(e.keyCode) : k = parseInt(e.which);
return ((k > 47 && k < 58) || (k > 64 && k < 91) || (k > 95 && k < 123) || k == 8 || k == 9);  
}

   function capfirst(t) {
t.value = t.value.slice(0,1).toUpperCase() + t.value.slice(1,t.value.length);
}

var updateTimeout;
var updateTimeout2;
function update1(arg1)
{
    updateTimeout = setTimeout("xajax_attacker1("+arg1+");", arg1);
}
function update2(arg2)
{
    updateTimeout2 = setTimeout("xajax_attacker2("+arg2+");", arg2);
}
function stopUpdate()
{
    clearTimeout(updateTimeout);
    clearTimeout(updateTimeout2);
}