I am using a ckeditor in replacement with a textbox id txtEditorAnswer but on running I found the following error in these lines
x.tabIndex=x.config.tabIndex||x.element.getAttribute('tabindex')||0;
o.modes={wysiwyg:!!n.element.$.form};
if(x.elementMode==1&&y.is('textarea'))
var z=y.$.form&&new h(y.$.form);