jQuery to enable tab behavior when pressing enter

HTML

<table class="formGrid" >
    <input id="input1" type="text" value="Press Enter to tab"><br/>
    <input type="text" />
    <a href="">link</a><br/>
    <button>click</button><br/>
    <textarea rows="10">Note:You need to press tab to get out of the textarea since it's a       multi-line control</textarea> <br/>
    <select>
      <option value="1">One</option>
      <option value="2">Two</option>
    </select>
</table>

JavaScript

// Use to act like tab using enter key
$.fn.enterkeytab=function(){
    $(this).on('keydown', 'input, select, a, button', function(e) {
    debugger;
        var self = $(this)
        , form = self.parents()
        , focusable
        , next
        ;
        if (e.keyCode == 13) {
            focusable = form.find('input,a,select,button,textarea').filter(':visible');
            next = focusable.eq(focusable.index(this)+1);
            if (next.length) {
                next.focus();
            } else {
                next = focusable.eq(0);
                next.focus();
                //alert("wd");
                //form.submit();
            }
            return false;
        }
    });
}

$("input1").enterkeytab(); // enter key tab