Div click doesn' work?

Div click doesn' work?

https://jsfiddle.net/jsfiddle135/sn06tuur/16/





============ Explanation ============

//##### Question1 - HIDE
$(".forgetc").css({'z-index', -5});
$(".forgetc").hide();    // This doesn't hide.
 
function display(mode){
           
  if(mode=='forget'){
    //SHOW
    $(" .forgetc").css('z-index', 5).show();
    //hide
    $(" .fmenu").css('z-index', -5).hide();     

  }//if    
  return false;  
}//END<<<<<<,funciton display

         
$("#forget").click(function(){

     display('forget');
     
     return false;
});//forget
   
$("document").on('click', '#getnew1', function(){
    //### Question2 
    alert('kdjfijefijfijieje');    // This aren't fired.
   
});