//server request to get scores
function getScores()
{
     var myurl = 'get_solitaire_scores.php';
     myRand = parseInt(Math.random() * 99999999999999);
     //avoid cache problems
     var modurl = myurl+"?rand="+myRand;

     myRequest.open("GET", modurl, true);

     //set up callback function 
     myRequest.onreadystatechange = useHttpResponse;
     myRequest.send(null);
}

function onLoadEvent()
{
    getScores();
    getMessages();
}

//server request to get messages
function getMessages()
{
     var myurl = 'get_solitaire_messages.php';
     myRand = parseInt(Math.random() * 99999999999999);
     //add random number to url to avoid cache problems
     var modurl = myurl+"?rand="+myRand;

     myRequest3.open("GET", modurl, true);

     //set up callback function 
     myRequest3.onreadystatechange = useHttpResponse3;
     myRequest3.send(null);
}

//server request to post a score
function postScore()
{
     var myurl = 'put_solitaire_score.php';
     time = document.ksApplet.getTime();
     score = document.ksApplet.getScore();
     scoringsystem = document.ksApplet.getScoringSystem();
     gameWon = document.ksApplet.gameWon();
     hints = document.ksApplet.getHintsUsed();

     screenname = document.forms.myForm.screenname.value;
     
     if (screenname == null || screenname.length==0)
     {
         alert("Please log in.  You must be logged in to post your scores.");
         return;
     }

     if(!gameWon)
     {
         alert("Sorry, but you must win the game in order to post a score.");
         return;
     }

     if (time!="99:99" && score==0)
     {
        alert("Sorry, but you must win the game in order to post a score.");
        return;
     }
     
     if (screenname != null && screenname.length >0 && score >0)
     {
           myRand = parseInt(Math.random() * 99999999999999);
           //add random number to url to avoid cache problems
           var modurl = myurl;
           myRequest2.open("POST", modurl, true);
           //set up callback function 
           myRequest2.onreadystatechange = useHttpResponse1;
           myRequest2.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
           myRequest2.send('screenname='+screenname+'&score='+score+'&scoringsystem='+scoringsystem+'&time='+time+'&hints='+hints);
     }
}


function getXMLHTTPRequest()
{
   var req = false;
   try
   {
       req = new XMLHttpRequest();
   }
   catch (err1)
   {
        try
        {
            req = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (err2)
        {
            try
            {
                 req = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (err3)
            {
                 req = false;
            }
        }
    }       
    return req;
}

//server request to post a message
function sendMessage()
{
     var myurl = 'put_solitaire_message.php';

     chatname = document.forms.msgForm.chatname.value;
     message  = document.forms.msgForm.message.value;

     if (message.length==0)
     {
         alert("Message is empty.  Please try again.");
         return;
     }

     if (chatname == null || chatname.length==0)
     {
         alert("Please log in.  You must be logged in to post a message.");
         return;
     }

     if (chatname != null && chatname.length >0 && message.length>0)
     {
           myRand = parseInt(Math.random() * 99999999999999);
           //add random number to url to avoid cache problems
           var modurl = myurl;
           myRequest4.open("POST", modurl, true);
           //set up callback function 
           myRequest4.onreadystatechange = useHttpResponse4;
           myRequest4.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
           myRequest4.send('chatname='+chatname+'&message='+message);
           document.forms.msgForm.message.value='';
     }
}

   //scores
   var myRequest  = getXMLHTTPRequest();
   var myRequest2 = getXMLHTTPRequest();
   //messages
   var myRequest3 = getXMLHTTPRequest();
   var myRequest4 = getXMLHTTPRequest();


//callback function
function useHttpResponse()
{
   if (myRequest.readyState == 4)
   {
       if (myRequest.status ==200)
       {
          var mytext = myRequest.responseText;
          document.getElementById('myPageElement').innerHTML = mytext;
       }
   }
   else
   {
       document.getElementById('myPageElement').innerHTML = "";
   }
}

//callback function for posting data
function useHttpResponse1()
{
   if (myRequest2.readyState == 4)
   {
       if (myRequest2.status ==200)
       {
                //now re-display the scores
                getScores();
       }
   }
   else
   {
       //alert("failed");
   }
}


//callback function
function useHttpResponse3()
{
   if (myRequest3.readyState == 4)
   {
       if (myRequest3.status ==200)
       {
          var mytext = myRequest3.responseText;
          document.getElementById('myMessages').innerHTML = mytext;
       }
   }
   else
   {
       document.getElementById('myMessages').innerHTML = "";
   }
}

//callback function for posting data
function useHttpResponse4()
{
   if (myRequest4.readyState == 4)
   {
       if (myRequest4.status ==200)
       {
              //now re-display the messages
              getMessages();
       }
   }
   else
   {
       //alert("failed");
   }
}