diff --git a/lib/scripts/media.js b/lib/scripts/media.js
index f76c528b3036456a18fdd79e720240af184866fd..bcc37b3d76f51dfe173f692ce74258c6b7174358 100644
--- a/lib/scripts/media.js
+++ b/lib/scripts/media.js
@@ -173,7 +173,7 @@ media = {
 
         if(!opener){
             // if we don't run in popup display example
-            var ex = $('ex_'+id);
+            var ex = $('ex_'+id.replace(/:/,'_'));
             if(ex.style.display == ''){
                 ex.style.display = 'none';
             }else{