Syntax
document.anchors[num].y
The y property contains the y-coordinate of the anchor, in pixels, from the top edge of the document to the anchor.
<html> <center><a name="B"><h4>B</h4></a></center> AAA<hr> <script language="JavaScript"> <!-- document.write("The y property is equal to ",document.anchors[0].y); // ---End Hide--> </script> </html>