<script> var st="2009-10-20 14:38:40" var et="2009-10-20 15:38:40" var stdt=new Date(st.replace("-","/")); var etdt=new Date(et.replace("-","/")); if(stdt>etdt) alert("开始时间必须小于结束时间") </script>
直接比较…… 就可以了 <script> var st="2009-10-20 14:38:40" var et="2009-10-20 15:38:40" if(st>et) alert("开始时间必须小于结束时间") </script>
<script>
var st="2009-10-20 14:38:40"
var et="2009-10-20 15:38:40"
var stdt=new Date(st.replace("-","/"));
var etdt=new Date(et.replace("-","/"));
if(stdt>etdt) alert("开始时间必须小于结束时间")
</script>
var st="2009-10-20 14:38:40"
var et="2009-10-20 15:38:40"
if(st>et) alert("开始时间必须小于结束时间")
</script>