[devote]

<input type="text" class="test"> 
  
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> 
<script type="text/javascript">
$(".test").keypress(function( b ){
    var C = /[0-9\x25\x27\x24\x23]/;
    var a = b.which;
    var c = String.fromCharCode(a);
    return !!(a==0||a==8||a==9||a==13||c.match(C));
});
</script>