sonntagausgang,
<style>
#outer{width:360px;line-height:30px;text-align:center;}
#outer div{float:left;width:30px;height:30px;border:1px solid #ccc;margin:2px;}
</style>
<div id="outer"></div>
<script>
var divs = [];
for (var i = 0; i < 100; i++) divs[i] = '<div>' + (i % 10) + '</div>';
divs.sort(function(){return (Math.round(Math.random()) - 0.5)});
document.getElementById('outer').innerHTML = divs.join('');
</script>