You would likely need to make a conditional in the first code line of the default.html (and maybe other) template changing the default style to be used depending on the calendar being displayed. This is a pseudo (not real) code example:
if (other calendar)
$STYLE = $in{style} | | $in{calendar_style} | | "List";
else
$STYLE = $in{style} | | $in{calendar_style} | | "Grid";
Dan O/
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[This message has been edited by DanO (edited December 03, 2003).]