First of all, that should be all on one line (I know, it may have gotten wrapped before I formatted it - what matters is how it appears in your source code).
Second, you should quote the URL of the image.
Third, you cannot nest like delimiters (in this case the single quote ' character) in a string without escaping them (\'), try this:
Code:
leftrightslide[0]='<a href="http://" onmouseover="ddrivetip(\'JavaScriptKit.com JavaScript tutorials\', 300);" onmouseout="hideddrivetip();"><img src="http://www.maayangoldman.com/images/sb8_1.jpg" border=0 title="model"></a>';
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