去除空格和回车

<script type="text/javascript" src="http://cdn.bootcss.com/zepto/1.0rc1/zepto.min.js"></script>
<script type="text/javascript">
$(function(){
var s0 = "1\n\n\n\r\n\n\r1";
var s= $.trim(s0);
s=s.replace(/\r/g,'');
s=s.replace(/\n/g,'');
alert(s0.length);
alert(s.length);
});
</script>