professional-javascript-03-RandomExample.htm / htm
<html>
<head>
<title>Example</title>
</head>
<body>
<script type="text/javascript">
function selectFrom(iFirstValue, iLastValue) {
var iChoices = iLastValue - iFirstValue + 1;
return Math.floor(Math.random() * iChoices + iFirstValue);
}
//select from between 2 and 10
var iNum = selectFrom(2, 10);
var aColors = ["red", "green", "blue", "yellow", "black", "purple", "brown"];
var sColor = aColors[selectFrom(0, aColors.length-1)];
alert(sColor);
</script>
</body>
</html>
(C) Æliens 20/2/2008
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