js计算时间差

<script src="jquery.js"></script>

<input id="s" value="2011-3-18" />

<input id="e" value="2011-5-18" />
<br/><br/>
时间差：<input id="c">天

<script>
var start = new Date($("#s").val().replace(/-/g,"/"));

var end = new Date($("#e").val().replace(/-/g,"/"));

var diff = parseInt((end - start) / (1000*60*60*24));
$("#c").val(diff);
</script>