CODE>sourceRange</CODE> - The <code>Range</code> on which this current 
   <code>Range</code> is compared to.<DT><B>Returns:</B><DD>-1, 0 or 1 depending on whether the corresponding 
   boundary-point of the Range is respectively before, equal to, or 
   after the corresponding boundary-point of <code>sourceRange</code>.<DT><B>Throws:</B><DD><CODE>org.w3c.dom.DOMException</CODE> - WRONG_DOCUMENT_ERR: Raised if the two Ranges are not in the same 
   Document or DocumentFragment.
   <br>INVALID_STATE_ERR: Rai