Question

I want to make a text box allow only letters (a-z) using jQuery.
Any examples?

Answer 1

<input name="lorem" onkeyup="this.value=this.value.replace(/[^a-z]/g,'');">

And can be the same to onblur for evil user who like to paste instead of typing 😉

[+] Pretty jQuery code:

<input name="lorem" class="alphaonly">
<script type="text/javascript">
$('.alphaonly').bind('keyup blur',function(){ 
    var node = $(this);
    node.val(node.val().replace(/[^a-z]/g,'') ); }
);
</script>