var http_request = false;
function makePOSTRequest(url, parameters, place) {
  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;
  }
  
  if(place==1)
    http_request.onreadystatechange = alertContents;
  else if (place==2)
    http_request.onreadystatechange = alertContents2;
  else if (place==3)
    http_request.onreadystatechange = alertContents3;
  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) {
    //alert(http_request.responseText);
     if (http_request.status == 200) {
        //alert(http_request.responseText);
        result = http_request.responseText;
        document.getElementById('ajaxholder').innerHTML = result;            
     } else {
        alert('There was a problem with the request.');
     }
  }
}

function alertContents2() {
  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 alertContents3() {
  if (http_request.readyState == 4) {
    //alert(http_request.responseText);
     if (http_request.status == 200) {
        //alert(http_request.responseText);
        result = http_request.responseText;
        document.getElementById('mydiv').innerHTML = result;
        var field = document.getElementById('sortfield').value;
        tsInitOnload();
        if(field=="0A" || field=="0D" || field=="0" || field=="2A" || field=="2D" || field=="2")
            tsDrawA(field);
        else
            tsDraw(field);
        document.getElementById('loadingDiv').style.display = "none";
     } else {
        alert('There was a problem with the request.');
     }
  }
}


function get(poststr, place) {
  makePOSTRequest('ajax.aspx', poststr, place);
}