Determine the element position. Position is the location of the element relative to where it appears in the flow, as compared to offset which is the element's location relative to the document. Unless modified via CSS or JavaScript (same thing as CSS, really), position is 0, 0.
1: no position specified
2a: position specified with inline style attribute
2b: same as 2a, but specified in STYLE
3: negative position
4: top, left set with JavaScript