I haven't tried but wouldn't this help?:
http://api.jquery.com/nth-child-selector/
I mean the number of and even is known so it should be possible to get the nth tr with the nth td within to change the value.
This seems to work:
$("table[id|='image'] tbody tr:nth-child(n)").hide();
where n is the row number. It's complicated by the fact that some of the rows of the containing table for the data for each image contain further tables, but the method above does appear to work.
a|x