function playVideo(src) {
    'use strict';
    document.querySelector('#program_video button').style = 'display:none;';
    document.querySelector('#program_video iframe').style = 'display:block;';
    document.querySelector('#program_video iframe').src = src;
}
$(".instructor-image, .instructor-label").leanModal({closeButton: ".modal_close", top: '10%'});
// Create MutationObserver which prevents the body of
// the page from scrolling when a modal window is displayed
var observer = new MutationObserver(function(mutations, obv){
  mutations.forEach(function(mutation) {
    if ($(mutation.target).css('display') === 'block') {
      $('body').css('overflow','hidden');
    } else {
      $('body').css('overflow', 'auto');
    }
  });
});
$('.modal').each(function(index, element){
  observer.observe(element, {attributes: true, attributeFilter:['style']});
});