jQuery clear input text on focus

Question

I have this jQuery script:

$(document).ready(function() {
    $(\':input:enabled:visible:first\').focus();
    $(\'.letters\').keyup( function() {
          


        

Answer 1

To answer your focus question, yes you can do that:

$("input").focus(function() {
  this.value = "";
});

To answer the only allow letters question, this has been asked before.