Rails spinoffs - Apr 2006 - autocomplete update element positioning in Opera

I''m trying the auto-complete on Opera 8.5. I know it is not officially
supported but it mostly works. Just one little problem: Opera seems to
have some issue with .scrollTop on a input control. I expect it to
report 0 but it report its current coordinate. So the update window goes
to a wrong location.

This is a block of code in Position.page

    page: function(forElement) {
    ...
    /*
    do {
        valueT -= element.scrollTop || 0;
        valueL -= element.scrollLeft || 0;
    } while (element = element.parentNode);
    */

If I comment out the valueT -= element.scrollTop stuff, the update position
perfectly in Opera. I wonder what that block of code is for?

wy


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