// JavaScript Document


  $(document).ready(function(){
       
        //Hide div w/id extra
       $("#extra").css("display","none");

        // Add onclick handler to checkbox w/id checkme
       $("#id_gift").click(function(){
       
        // If checked
        if ($("#id_gift").is(":checked"))
        {
            //show the hidden div
            $("#extra").show("fast");
        }
        else
        {     
            //otherwise, hide it
            $("#extra").hide("fast");
        }
      });
   
    });