| Constant | Value |
|---|---|
| Element_Node | 1 |
| Attribute_Node | 2 |
| Text_Node | 3 |
| CData_Section_Node | 4 |
| Entity_Reference_Node | 5 |
| Entity_Node | 6 |
| Processing_Instruction_Node | 7 |
| Comment_Node | 8 |
| Document_Node | 9 |
| Document_Type_Node | 10 |
| Document_Fragment_Node | 11 |
| Notation_Node | 12 |
| Other_Node | 13 |