code: function() {
              if(this.$input.is(':visible')) {
  				this.$input.focus();
  				$.fn.editableutils.setCursorPosition(this.$input.get(0), this.$input.val().length);
  				
  				var val = parseInt(this.$input.val());
  				var options = $.extend({value:val}, this.options.spinner);
  				this.$input.ace_spinner(options);
              }
         }
docs: Activates input: sets focus on the first field.
  
  @method activate()