Get Etherpad Pad contents in Javascript

function getElementByIdInFrames(id, base) {
  var el;
  if(el = base.document.getElementById(id)) {
    return el;
  }

  for(var i = 0, len = base.frames.length; i < len; i++) {
    if(el = getElementByIdInFrames(id, base.frames[i])) {
      return el;
    }
  }
}
getElementByIdInFrames("innerdocbody", window).innerHTML;

This means you can also do…

getElementByIdInFrames("innerdocbody", window).innerHTML = "Superducky";

And if you want to use jQuery a one liner will sort you out..

console.log($('iframe[name="ace_outer"]').contents().find('iframe').contents().find("#innerdocbody"));

NOTE: Due to a change in the jQuery API a . after iframe was removed — 10/02/2013

Means you can do..

$('iframe[name="ace_outer"]').contents().find('iframe').contents().find("#innerdocbody").html("Superducky");

Thanks to Mark Fisher for the jQuery example