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<td onclick='change_box("99FF66")' onmouseover='fade_on_css("99FF66")'  style='background-color:#99FF66; width:20px; height:20px;'/>
<td onclick='change_box("99FF99")' onmouseover='fade_on_css("99FF99")'  style='background-color:#99FF99; width:20px; height:20px;'/>
<td onclick='change_box("99FFCC")' onmouseover='fade_on_css("99FFCC")'  style='background-color:#99FFCC; width:20px; height:20px;'/>
<td onclick='change_box("99FFFF")' onmouseover='fade_on_css("99FFFF")'  style='background-color:#99FFFF; width:20px; height:20px;'/>