Changing the Enter Mode in ContentEditable DIV

Question

In content Editable DIV, on pressing the Enter Key,div tag is appended in chrome... Can it be possible to change it to br tag?

I have tried the below code. But It is working only if i press "Enter" key twice,if i type some contents before it. For Empty lines, it s working fine.

     var range = window.getSelection().getRangeAt(0);
     var Node = document.createElement("BR");
     range.insertNode(Node);
     range.setStartAfter(Node);
  sel.removeAllRanges();
  sel.addRange(range);
      event.preventDefault();

can anyone help me on this issue? Thanks in advance...