code: public void setElementAttributeNS(String ns, Element element, String attr, String value) {
  		setNameSpaceAttribute(ns, element, attr, value);
  	}
docs: <p>
  Adds a new attribute in the given name-space to an element.
  </p>
  <p>
  There is an exception when using Internet Explorer! For Internet Explorer the attribute of type "namespace:attr"
  will be set.
  </p>
  
  @param ns
  The name-space to be used in the element creation.
  @param element
  The element to which the attribute is to be set.
  @param attr
  The name of the attribute.
  @param value
  The new value for the attribute.