index = 0
score = 0
correct = 0
percentage = 0
quitearly = 0
hitreport = score+" ducks hit"
boxes=new Array ("a","b","c","d")

function swapImage(imgName,newSrc)
{
oldSrc=document.images[imgName].src
oldImg=imgName
document.images[imgName].src=newSrc
}

function swapBack()
{
document.images[oldImg].src=oldSrc	
}

function storeresult()
{
setCookieEz("index",index);
setCookieEz("correct",correct);
setCookieEz("percentage",percentage);
setCookieEz("hitreport",hitreport);
setCookieEz("quitearly",quitearly);
}

function quit()
{
if (confirm("Are you sure you want to quit?"))	
{alert("The correct answer was actually \'"+document.duck[correctanswer].value+"\'!")
quitearly=1
storeresult()
location.href="continue.html"}
}

function fire()
{
duck.movie.TGotoFrame("_level0/explode",1);duck.movie.TPlay("_level0/explode");
}

function feedback()
{
percentage = (Math.round(100*(correct/index)))
document.duck.status.value = (15-index)+" shots remaining!" 
if (index==14) {document.duck.status.value = "Your final shot!"}
if (index==15) {document.duck.status.value = "Game complete!"}

hitreport = score+" ships hit"
if (score==1) {hitreport = score+" ship hit"}
shotreport = index+" shots"
if (index==1) {shotreport = index+" shot"}

document.duck.shootingstatus.value = percentage+"% - "+correct+" correct from "+shotreport   
document.duck.hitstatus.value = hitreport
}

function wrong()
{
duck.movie.TGotoFrame("_level0/feedback",3);
}

function moveon_correct()
{
document[index+2].src = "../images/duckhit1.gif"
score++
feedback()
if (index==15) {storeresult(); location.href="continue.html"; alert("Excellent - game complete.")}
else{
response=Math.round(4 * Math.random())
	if (response==0) {alert("Excellent answer!");}
	if (response==1) {alert("Well done - great answer");}
	if (response==2) {alert("Correct - and you got the ship!");}
	if (response==3) {alert("Good answer - continue on...");}
	if (response==4) {alert("Marvellous answer - well done!");}
play()}
}

function moveon_correctmiss()
{
document[index+2].src = "../images/correct.gif"
feedback()
if (index==15) {storeresult(); location.href="continue.html"; alert("A good final answer, but you didn't hit the target!")}
else {
response=Math.round(2 * Math.random())
	if (response==0) {alert("Good answer - a pity you missed the target!");}
	if (response==1) {alert("Correct answer - but no ship!");}
	if (response==2) {alert("Well answered, but a bad shot. ");}
play()}
}

function moveon_miss()
{
document[index+2].src = "../images/wrong.gif"
feedback()
if (index==15) {storeresult(); location.href="continue.html"; alert("Incorrect final answer. You should have chosen "+document.duck[correctanswer].value+".")}
else {
response=Math.round(4 * Math.random())
	if (response==0) {alert("Incorrect - you should have chosen: "+document.duck[correctanswer].value+".");}
	if (response==1) {alert("Sorry - the correct answer was: "+document.duck[correctanswer].value+".");}
	if (response==2) {alert("The ship sails away!  The answer was: "+document.duck[correctanswer].value+".");}
	if (response==3) {alert("Not a good choice - the answer was: "+document.duck[correctanswer].value+".");}
	if (response==4) {alert("Unlucky - wrong answer.  It was actually: "+document.duck[correctanswer].value+".");}
play()}
}

function start()
{
play()
}

function play()
{
duck.movie.LoadMovie(0, "../armadashoot.swf");
duck.movie.TGotoFrame("_level0",0);
duck.movie.TPlay("target");
duck.movie.TGotoFrame("_level0/feedback",0);

duck.movie.play();

questionchoice=Math.round((availablegames-1) * Math.random())
	document.duck.questionbox.value = game[questionchoice][index][0]
	document.duck.author.value = "Question by "+game[questionchoice][index][5]
	document.duck.a.value = ""
	document.duck.b.value = ""
	document.duck.c.value = ""
	document.duck.d.value = ""

count=1
doit()
}
function doit()
{for(n=1; n<=500; n++){
randnum=Math.round(3 * Math.random())
if (document.duck[boxes[randnum]].value == "")
	{	document.duck[boxes[randnum]].value = game[questionchoice][index][count]
		if(count==1)
			{correctanswer=[boxes[randnum]]}
	count++}}}

function checkanswer(x)
{

index++

if (x==correctanswer)
{
correct++
fire()
}

else
{
wrong()
}


}