Mega Code Archive
Math random()
<![CDATA[
Syntax
math.random(num)
The random() method of the Math object is used to obtain a random number between values 0 and 1.
<html>
<body>
<script language="JavaScript">
<!--
function doMath(){
var result = Math.random();
document.form1.answer.value = result;
}
-->
</script>
<form name=form1>
The random number is:
<input type="text" name="answer" size=20>
<input type="button" value="Calculate" onClick='doMath()'>
<br>
</form>
</body>
</html>
]]>