for the mouse over code, you have:
onmouseover="document.getElementById('imageid').src = 'uploads/<?php echo $row_rsartistlist['artist_pict']; ?>)'
the ) at the end is causing the problem, it should be:
onmouseover="document.getElementById('imageid').src = 'uploads/<?php echo $row_rsartistlist['artist_pict']; ?>'


