求一个函数~判断小数点后面的2位数字不超过12

[pharaohsprince]

要判断小数点后面的2位数字不超过12
传递过来的字符格式00.00
-----------------------
例如:
100.11 返回true
100.12 .12因为12>=12 ，返回false

[hbhbhbhbhb1021]

<input name=num onblur="if(!/(^[1-9]\d*|0)(\.(0\d|1[01])?)?$/.test(this.value)){alert('错误');this.value=''}">

[hbhbhbhbhb1021]

<input name=num onblur="if(!/(^[1-9]\d*|0)(\.(0\d|1[01]))?$/.test(this.value)){alert('错误');this.value=''}">

[meizz]

<SCRIPT LANGUAGE="JavaScript">
<!--
function mm(n)
{
if(/^(\+|-)?\d+\.(\d{2})\d*$/.test(""+n))
{
return parseInt(RegExp.$2, 10)<12;
}
return false;
}
alert(mm(100.11));
alert(mm(100.12));
alert(mm(-1123100.02));
//-->
</SCRIPT>