Link med to funksioner

Svar er fundet

<table border="1" width="55%" id="table1">
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src="tom.jpg" id="billedeskift" width="850" height="186"></td>
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        <td width="6%"><a href="side1.htm" target="I1" onclick="document.getElementById('billedeskift').src='billede1.jpg';">Side1</a></td>
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