public/javascript/libs/wysihtml5-0.3.0.js
function _getNextSiblingThatIsNotBlank(node) {
    var nextSibling = node.nextSibling;
    while (nextSibling && _isBlankTextNode(nextSibling)) {
      nextSibling = nextSibling.nextSibling;
    }
    return nextSibling;
  }
function _getNextSiblingThatIsNotBlank(node) {
    var nextSibling = node.nextSibling;
    while (nextSibling && _isBlankTextNode(nextSibling)) {
      nextSibling = nextSibling.nextSibling;
    }
    return nextSibling;
  }
Returns next sibling node that is not a blank text node