Easy enough to do in Javascript using an array randomiser:
Code:
<script language="JavaScript" type="text/JavaScript">
<!--
function fisherYates ( myArray ) {
var i = myArray.length;
while ( i-- ) {
var j = Math.floor( Math.random() * ( i + 1 ) );
var tempi = myArray[i];
var tempj = myArray[j];
myArray[i] = tempj;
myArray[j] = tempi;
}
}
-->
</script>
<script type="text/javascript">
<!--
var asLucky = new Array ( 2, 3, 4, 5, 7, 9, 11, 13 );
fisherYates(asLucky);
var displayHowMany = 3;
for (i=0; i<displayHowMany; i++) {
var yourNumber = asLucky[i];
document.write("Random number " + i + ': ' + yourNumber + '<br>');
}
-->
</script>
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