$(document).ready(function(){
var url = a.link_imagelibrary
if ("url:contains ('#hidden')") {
    $("url").click(function(){
  alert("yes!");
});
}
});

$('a.link_imagelibrary[href*=#hidden]').click(function () {
    alert('yes!');
})

$("a.link_imagelibrary").filter(function(){
 return this.href.indexOf("#hidden") > -1;
}).click(function(){
 alert("yes!");
});

if(url.indexOf('#hidden') > -1) alert('yes !')

var url = 'http://s.codepen.io'; // will look for a link pointing to this url
$(document).ready(function(){

  $('a[href="'+url+'"]').click(function(e) { // when clicked it will load the page

    $.get(url, function(data) {
      var doc = $(data);
      if (doc.has("#icon-heart").length) { // and check to see if there are any
        alert('yes!'); // elements with id icon-heart in it
      }
    });
    e.preventDefault();
  });
});