执行“tab”键onkeyup（）的操作

I have 4 text fields. When i enter a value in first text box cursor should move to next text box. That is onkeyup() i need to perform action of tab key. Is there any javascript or jquery for that

You can try this

HTML

<input type="text" class="focus" />
<input type="text" class="focus" />
<input type="text" class="focus" />
<input type="text" class="focus" />

JS

  $(".focus").keyup(function(){
   if($(this).val() != "")
   {
    $(this).next(".focus").focus();
   }
  });