code: public Element createElementNS(String ns, String tag) {
  		return createElementNS(ns, tag, null);
  	}
docs: <p>
  Creates a new DOM element in the given name-space. If the name-space is HTML, a normal element will be created.
  </p>
  <p>
  There is an exception when using Internet Explorer! For Internet Explorer a new element will be created of type
  "namespace:tag".
  </p>
  
  @param ns
  The name-space to be used in the element creation.
  @param tag
  The tag-name to be used in the element creation.
  @return Returns a newly created DOM element in the given name-space.