The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.
Gets the y-coordinate of the mouse pointer, relative to the upper-left corner of the viewport (that is, the application's client area).
p = object.clientY
Client coordinates do not reflect the scroll offset of the page. To get the mouse pointer's coordinates relative to the upper-left corner of the document, use the pageX and pageY properties.