var sone = 0;
var stwo = 0;
var sthree = 0;
var sfour = 0;
var sfive = 0;
var ssix = 0;
var sseven = 0;
var seight = 0;
var snine = 0;
var sten = 0;
var seleven = 0;
var stwelve = 0;
var sthirteen = 0;
var sfourteen = 0;
var sfifteen = 0;
var score = 0;
var cheat = 0;

var nomark = "bits/transparent.gif"
var cross = "bits/cross.gif"
var tick= "bits/tick.gif"


function checkScore1() {
if (document.form1.onet.value == one) {
sone = 1;
document.images.one.src=tick;
} else {
document.images.one.src=cross;
}
}
function checkScore2() {
if (document.form1.twot.value == two) {
stwo = 1;
document.images.two.src=tick;
} else {
document.images.two.src=cross;
}
}
function checkScore3() {
if (document.form1.threet.value == three) {
sthree = 1;
document.images.three.src=tick;
} else {
document.images.three.src=cross;
}
}
function checkScore4() {
if (document.form1.fourt.value == four) {
sfour = 1;
document.images.four.src=tick;

} else {
document.images.four.src=cross;
}
}
function checkScore5() {
if (document.form1.fivet.value == five) {
sfive = 1;
document.images.five.src=tick;
} else {
document.images.five.src=cross;
}
}
function checkScore6() {
if (document.form1.sixt.value == six) {
ssix = 1;
document.images.six.src=tick;
} else {
document.images.six.src=cross;
}
}
function checkScore7() {
if (document.form1.sevent.value == seven) {
sseven = 1;
document.images.seven.src=tick;
} else {
document.images.seven.src=cross;
}
}
function checkScore8() {
if (document.form1.eightt.value == eight) {
seight = 1;
document.images.eight.src=tick;
} else {
document.images.eight.src=cross;
}
}
function checkScore9() {
if (document.form1.ninet.value == nine) {
snine = 1;
document.images.nine.src=tick;
} else {
document.images.nine.src=cross;
}
}
function checkScore10() {
if (document.form1.tent.value == ten) {
sten = 1;
document.images.ten.src=tick;
} else {
document.images.ten.src=cross;
}
}
function checkScore11() {
if (document.form1.elevent.value == eleven) {
seleven = 1;
document.images.eleven.src=tick;
} else {
document.images.eleven.src=cross;
}
}
function checkScore12() {
if (document.form1.twelvet.value == twelve) {
stwelve = 1;
document.images.twelve.src=tick;
} else {
document.images.twelve.src=cross;
}
}
function checkScore13() {
if (document.form1.thirteent.value == thirteen) {
sthirteen = 1;
document.images.thirteen.src=tick;
} else {
document.images.thirteen.src=cross;
}
}
function checkScore14() {
if (document.form1.fourteent.value == fourteen) {
sfourteen = 1;
document.images.fourteen.src=tick;
} else {
document.images.fourteen.src=cross;
}
}
function checkScore15() {
if (document.form1.fifteent.value == fifteen) {
sfifteen = 1;
document.images.fifteen.src=tick;
} else {
document.images.fifteen.src=cross;
}
}


function checkScore16() {

if (cheat >=1) {
clear();
alert("Click on Reset to have another go!");
} else {
checkScore1();
checkScore2();
checkScore3();
checkScore4();
checkScore5();
checkScore6();
checkScore7();
checkScore8();
checkScore9();
checkScore10();
checkScore11();
checkScore12();
checkScore13();
checkScore14();
checkScore15();
score = sone+stwo+sthree+sfour+sfive+ssix+sseven+seight+snine+sten+seleven+stwelve+sthirteen+sfourteen+sfifteen;
alert("Your score is "+score+" / 15");
}
}

function reveal() {
document.form1.onet.value = one;
document.form1.twot.value = two;
document.form1.threet.value = three;
document.form1.fourt.value = four;
document.form1.fivet.value = five;
document.form1.sixt.value = six;
document.form1.sevent.value = seven;
document.form1.eightt.value = eight;
document.form1.ninet.value = nine;
document.form1.tent.value = ten;
document.form1.elevent.value = eleven;
document.form1.twelvet.value = twelve;
document.form1.thirteent.value = thirteen;
document.form1.fourteent.value = fourteen;
document.form1.fifteent.value = fifteen;

cheat++;
clear();

}
function again() {
cheat = 0;
score = 0;
sone = 0;
stwo = 0;
sthree = 0;
sfour = 0;
sfive = 0;
ssix = 0;
sseven = 0;
seight = 0;
snine = 0;
sten = 0;
seleven = 0;
stwelve = 0;
sthirteen = 0;
sfourteen = 0;
sfifteen = 0;
document.images.one.src=nomark;
document.images.two.src=nomark;
document.images.three.src=nomark;
document.images.four.src=nomark;
document.images.five.src=nomark;
document.images.six.src=nomark;
document.images.seven.src=nomark;
document.images.eight.src=nomark;
document.images.nine.src=nomark;
document.images.ten.src=nomark;
document.images.eleven.src=nomark;
document.images.twelve.src=nomark;
document.images.thirteen.src=nomark;
document.images.fourteen.src=nomark;
document.images.fifteen.src=nomark;


}

function clear() {
document.images.one.src=nomark;
document.images.two.src=nomark;
document.images.three.src=nomark;
document.images.four.src=nomark;
document.images.five.src=nomark;
document.images.six.src=nomark;
document.images.seven.src=nomark;
document.images.eight.src=nomark;
document.images.nine.src=nomark;
document.images.ten.src=nomark;
document.images.eleven.src=nomark;
document.images.twelve.src=nomark;
document.images.thirteen.src=nomark;
document.images.fourteen.src=nomark;
document.images.fifteen.src=nomark;


}