This is a paragraph
This is another paragraph
Click the button to compare the position of the two paragraphs.
Possible return values:
1: The two nodes do not belong to the same document.
2: p1 is positioned after p2.
4: p1 is positioned before p2.
8: p1 is positioned inside p2.
16: p2 is positioned inside p1.
32: The two nodes has no relationship, or they are two attributes on the same element.
Note: The compareDocumentPosition method is not supported in Internet Explorer 8 and earlier.
Note: The returnvalue could also be a combination of values. I.e. the returnvalue 20 means that p2 is inside p1 (16) AND p1 is positioned before p2 (4).