+var caretPositionFromPoint = function(x, y) {
+ /* globals document */
+ var range, textNode, offset;
+ if(document.caretPositionFromPoint) {
+ range = document.caretPositionFromPoint(x, y);
+ textNode = range.offsetNode;
+ offset = range.offset;
+ } else if(document.caretRangeFromPoint) {
+ range = document.caretRangeFromPoint(x, y);
+ textNode = range.startContainer;
+ offset = range.startOffset;
+ }
+ return {
+ textNode: textNode,
+ offset: offset
+ };
+};