I'm trying to insert a <br/> in the text

I'm trying to move the button under the textarea from js-code. But I can't make it happen!

var mybr = document.createElement('br');
var targetInnerHtml = obj.innerHTML;
var textArea= document.createElement('textarea');
var parentnode = obj.parentNode;
parentnode.insertBefore(textArea, obj);
parentnode.insertBefore(textArea, obj);
parentnode.insertBefore(mybr,obj.nextSibling); //this is not working either...
// document.write('<br />'); //tried this but nothing
//parentnode.appendChild(mybr); 开发者_如何学运维//this either
parentnode.insertBefore(butt, obj);

Any idea why?

I haven't got time to test, right now, but can you not simply set the display of the textarea to block:

textarea.style.disply = 'block';

JS Fiddle demo.

just put your textarea inside a div so it will occupy the whole line