[Seaside] Detect the position of a page div

[Robert Sirois]

Is there a way to detect the offset of a given element on a page? The following simply returns '$this.offset()'.

    html div
        id: 'bob';
        script: ((html jQuery new draggable) onDrag: (html jQuery ajax script: [:s | s add: ((html jQuery: #bob) html: (html jQuery: #bob) offset)]));
        with: html jQuery this offset.

Thanks!
RS

ps.

If it helps, the purpose of this function is to let the server know if a map is being moved in order to buffer the new tiles; essentially, a tiling script (ie. Google maps).
 		 	   		  
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