num0 = new Image();   //creating images
num1 = new Image();   //
num2 = new Image();   //
num3 = new Image();   //
num4 = new Image();   //
num5 = new Image();   //
num6 = new Image();   //
num7 = new Image();   //
num8 = new Image();   //
num9 = new Image();   //done creating images

//preload
num0.src="../images/score0.gif";
num1.src="../images/score1.gif";
num2.src="../images/score2.gif";
num3.src="../images/score3.gif";
num4.src="../images/score4.gif";
num5.src="../images/score5.gif";
num6.src="../images/score6.gif";
num7.src="../images/score7.gif";
num8.src="../images/score8.gif";
num9.src="../images/score9.gif";

var xmlhttp;
var score=0;
var correct= new Array(32);  //holds correct guesses
var begun="no"               //flag to tell if timer should start
var fin="no"                 //flag to tell if game has ended
var secs=120;                 //number of seconds left in game
var secsr=60;                 //count seconds in a minute
var t;                        //timer variable
function end()               //function to signify games end
{
secs--;
secsr--;
if(secs==0)//game over
  {
   fin="yes";
   clearTimeout(t);
   document.images[2].src="../images/score0.gif";
   document.images[3].src="../images/score0.gif";
   document.images[4].src="../images/score0.gif";
   document.getElementById('txt1').value="GAME OVER";
  }
else //game continues
{
  t=setTimeout("end()",1000);
  if(secs==119)
  {
    document.images[2].src="../images/score1.gif";
  }
  else if(secs==59)
  {
    document.images[2].src="../images/score0.gif";
  }
  if(secsr!=0)
  {
   if(secsr>9)
   {
    var replacement2="../images/score"+(secsr+"").charAt(0)+".gif";
    document.images[3].src=replacement2;
    var replacement3="../images/score"+(secsr+"").charAt(1)+".gif";
    document.images[4].src=replacement3;
   }
   else
   {
    document.images[3].src="../images/score0.gif";
    var replacement3="../images/score"+secsr+".gif";
    document.images[4].src=replacement3;
   }
  }
  else 
  {
   secsr=60;
   document.images[3].src="../images/score0.gif";
   document.images[4].src="../images/score0.gif";
  }
 }
}

function disableEnterKey(e)
{
     var key;      
     if(window.event)
          key = window.event.keyCode; //IE
     else
          key = e.which; //firefox  
         return (key != 13);
}

function showHint(str, e)
{
  if(begun=="no")
  {
    begun="yes";
    t=setTimeout("end()",1000);
  }
  if(fin=="no"){
  var guessed="no";
  if (str.length==0)
    {
    document.getElementById("txtHint").innerHTML="";
    return;
    }
  else
  {
    var p;
    for(p in correct)
    {
      if(str.toLowerCase()==correct[p])
      { 
        document.getElementById('txt1').value="";
        guessed="yes";
        break;
      }
    }
  }
   var key;      
     if(window.event)
          key = window.event.keyCode; //IE
     else
          key = e.which; //firefox  
   if(key==13)
     {
       if(document.getElementById("txtHint").innerHTML!="" && document.getElementById("txtHint").innerHTML==document.getElementById('txt1').value.toLowerCase())
       {
        correct[score]= document.getElementById("txtHint").innerHTML;
        score++;
        document.getElementById('txt1').value="";
          if(score<10)
           {
            var replacement="../images/score"+score+".gif";
            document.images[1].src=replacement;
           }
          else
           {
            var replacement="../images/score"+(score+"").charAt(0)+".gif";
            document.images[0].src=replacement;
            var replacement1="../images/score"+(score+"").charAt(1)+".gif";
            document.images[1].src=replacement1;
           }
        }
        else
        {
         document.getElementById('txt1').value="";
        }      
     }

  if(guessed=="no")
  {
  xmlhttp=GetXmlHttpObject();
  if (xmlhttp==null)
    {
    alert ("Your browser does not support XMLHTTP!");
    return;
    }
  var url="checkname.php";
  url=url+"?q="+str;
  url=url+"&sid="+Math.random();
  xmlhttp.onreadystatechange=stateChanged;
  xmlhttp.open("GET",url,true);
  xmlhttp.send(null);
  }//end check for if name was already guessed
  }//end check for end of game
  else
  {
   document.getElementById('txt1').value="GAME OVER";
  }
}

function stateChanged()
{
if (xmlhttp.readyState==4)
  {
  document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
  }
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}