jquery rounding up and down is suitable for paging queries_jquery

When using ajax for paging query, the number of paging should use the rounding function

<script language="javascript"> 
var uu=Math.floor(5.36) //向下取整 结果为5 
var uu=Math.floor(5.88) //结果为5 
Math.ceil(5.33) //向上取整，结果为6 
Math.round(5.55) //四舍五入 结果为6 
math.round(5.22) //结果为5 
</script>