hit = new Image();   //creating images
er = new Image();   //done creating images

//preload
hit.src="../images/hits.gif";
er.src="../images/err.gif";

var xmlhttp;
var score=0;
var correct= new Array(30);  //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 t;                        //timer variable
function end()               //function to signify games end
{
secs--;
if(secs==0)//game over
  {
   fin="yes";
   clearTimeout(t);
   document.getElementById('txt1').value="GAME OVER";
  }
else //game continues
{
  document.getElementById('sec_left').innerHTML=secs;
  t=setTimeout("end()",1000);
 }
}

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"; //flag to determine correct guess
  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=""; 
        document.getElementById('score').innerHTML=score;
        }
        else
        {
         document.getElementById('txt1').value="";
        }      
     }

  if(guessed=="no")
  {
  xmlhttp=GetXmlHttpObject();
  if (xmlhttp==null)
    {
    alert ("Your browser does not support XMLHTTP!");
    return;
    }
  var url="check-baseball-team.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;
}