优秀的随机数生成函数:
<script type="text/javascript">
<!--
function doit(){
//todo
alert(rand(2))
}
// The Central Randomizer 1.3 (C) 1997 by Paul Houle (houle@msc.cornell.edu)
// See: http://www.msc.cornell.edu/~houle/javascript/randomizer.html
function rand(number) {
return Math.ceil(rnd()*number);
};
rnd.today=new Date();
rnd.seed=rnd.today.getTime();
function rnd() {
rnd.seed = (rnd.seed*9301+49297) % 233280;
return rnd.seed/(233280.0);
};
// end central randomizer. -->
//-->
< /script>