hello, trying to create an effect with onmouseover and can not make it work right

the play code is

<cfoutput query="retest">
<table width="300" border="0" cellspacing="1" cellpadding="0" >
<tr style="background-color:###IIF(CurrentRow MOD 2, DE("99FFFF"), DE("9999FF"))#" >
<td >#retest.Media_text#</td>
<td>#retest.Media_Lankbild#</td>
</tr>
</table>
</cfoutput>
</body>
</html>

Fint it... is in css fore make it work