interface Range {
 /* IID: { 0xa6cf90ce, 0x15b3, 0x11d2, \
  { 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } } */

	const unsigned short START_TO_START = 0;
	const unsigned short START_TO_END = 1;
	const unsigned short END_TO_START = 2;
	const unsigned short END_TO_END = 3;

    readonly attribute Node startParent;
    readonly attribute long startOffset;
    readonly attribute Node endParent;
    readonly attribute long endOffset;

    readonly attribute boolean isCollapsed;
    readonly attribute Node commonParent;

    void setStart(in Node parent, in long offset);
    void setStartBefore(in Node sibling);
    void setStartAfter(in Node sibling);
    void setEnd(in Node parent, in long offset);
    void setEndBefore(in Node sibling);
    void setEndAfter(in Node sibling);

    void collapse(in boolean toStart);

    void selectNode(in Node n);
    void selectNodeContents(in Node n);

    int  compareEndPoints(in unsigned short how, in Range srcRange);

    void deleteContents();

    DocumentFragment extractContents();
    DocumentFragment cloneContents();

    void insertNode(in Node n);
    void surroundContents(in Node n);

    Range clone();

    DOMString toString();
 };

interface NSRange {
 /* IID: { 0xa6cf90f2, 0x15b3, 0x11d2, \
  { 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } } */
   DocumentFragment createContextualFragment(in DOMString fragment);
   boolean isValidFragment(in DOMString fragment);
 };