Firing from the hip here, I see two options (I don't *exactly* understand your target layout):
(1) You can use .load("page.html #divTag") which is jQuery's way of loading only the divTag from inside page.html and throwing the rest away. I use this inside a help panel.
(2) When you catch the click on the anchor, locate the href (a div id, I presume), take its .position() and assign .scrollTop. That should align the canvas.