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My version of the classic memory game concentration. Uncover all the blocks by successfully matching the image pairs. Click the Timer button below to start a new game whenever you want.

Label: Concentration

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Concentration_images.zip

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<script language="JavaScript">
<!-- Begin
var pics = new Array();
for (i = 0; i <= 18; i++) {
pics[i] = new Image();
pics[i].src = 'image' + i + '.gif';
}
var map=new Array(1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18);
var user = new Array();
var temparray = new Array();
var clickarray = new Array(0, 0);
var ticker, sec, min, ctr, id, oktoclick, finished;
function init() {
clearTimeout(id);
for (i = 0; i <= 35 ;i++) {
user[i] = 0;
}
ticker = 0;
min = 0;
sec = 0;
ctr = 0;
oktoclick = true;
finished = 0;
document.f.b.value = "";
scramble();
runclk();
for (i = 0; i <= 35; i++) {
document.f[('img'+i)].src = "image0.gif";
   }
}
function runclk() {
min = Math.floor(ticker/60);
sec = (ticker-(min*60))+'';
if(sec.length == 1) {sec = "0"+sec};
ticker++;
document.f.b.value = min+":"+sec;
id = setTimeout('runclk()', 1000);
}
function scramble() {
for (z = 0; z < 5; z++) {
for (x = 0; x <= 35; x++) {
temparray[0] = Math.floor(Math.random()*36);
temparray[1] = map[temparray[0]];
temparray[2] = map[x];
map[x] = temparray[1];
map[temparray[0]] = temparray[2];
      }
   }
}
function showimage(but) {
if (oktoclick) {
oktoclick = false; 
document.f[('img'+but)].src = 'image'+map[but]+'.gif';
if (ctr == 0) {
ctr++;
clickarray[0] = but;
oktoclick = true;
} else {
clickarray[1] = but;
ctr = 0;
setTimeout('returntoold()', 600);
      }
   }
}
function returntoold() {
if ((clickarray[0] == clickarray[1]) && (!user[clickarray[0]])) {
document.f[('img'+clickarray[0])].src = "image0.gif";
oktoclick = true;
} else {
if (map[clickarray[0]] != map[clickarray[1]]) {
if (user[clickarray[0]] == 0) {
document.f[('img'+clickarray[0])].src = "image0.gif";
}
if (user[clickarray[1]] == 0) {
document.f[('img'+clickarray[1])].src = "image0.gif";
   }
}
if (map[clickarray[0]] == map[clickarray[1]]) {
if (user[clickarray[0]] == 0&&user[clickarray[1]] == 0) { finished++; }
user[clickarray[0]] = 1;
user[clickarray[1]] = 1;
}
if (finished >= 18) {
alert('You did it in '+document.f.b.value+' !');
init();
} else {
oktoclick = true;
      }
   }
}
//  End -->
</script>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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<body onload="init()">
<form name="f"> 
<table cellpadding="0" cellspacing="0" border="0">
<script language="javascript">
<!-- Begin
for (r = 0; r <= 5; r++) {
document.write('<tr>');
for (c = 0; c <= 5; c++) {
document.write('<td align="center">');
document.write('<a href="javascript:showimage('+((6*r)+c)+')" onClick="document.f.b.focus()">');
document.write('<img src="image0.gif" name="img'+((6*r)+c)+'" border="0">');
document.write('</a></td>');
}
document.write('</tr>');
}
// End -->
</script></table>
<br><br>
<input type="button" value="0:47" name="b" onclick="init()">
</form>
</body>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

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30/01/2007
Brian Gosselin [more]
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JavaScript Concentration - Language: English

0/5 0 votes / 2,842 previews / 0 comment 30/01/2007 My version of the classic memory game concentration. Uncover all the blocks by successfu...JavaScript Concentration - Concentration - Language: English

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