get updates from codeMirror

Author: xem

index.html

@@ -20,6 +20,6 @@
 </textarea>
 <iframe id=f></iframe>
 <script>
-onload=oninput=function(){console.clear();f.srcdoc=t.value};
-CodeMirror.fromTextArea(t,{lineNumbers:true,mode:"htmlmixed"});
+onload=oninput=function(){console.clear();f.srcdoc=e.getValue()};
+e=CodeMirror.fromTextArea(t,{lineNumbers:true,mode:"htmlmixed"});
 </script>