Modal popup over modal popup

Use the given jQuery code in document_ready block.

  var modal_lv = 10000;  
     $('.modal').on('shown.bs.modal', function (e) {  
       $('.modal-backdrop:last').css('zIndex', 1051 + modal_lv);  
       $(e.currentTarget).css('zIndex', 1052 + modal_lv);  
       modal_lv++  
     });  
     $('.modal').on('hidden.bs.modal', function (e) {  
       modal_lv--  
     });  

Sample