Emerge’ ready event

index.html

<div class="emerge">
  <img src="1.jpg">
  <div class="emerge-custom" id="fotorama">
    <img src="2.jpg">
    <img src="3.jpg">
  </div>
</div>

some.js

$(function () {

  $('#fotorama')
    .on('fotorama:ready', function () {
      $(this).emerge('ready');
    })
    .fotorama();

});