<script>
lastobj=null;
function current(obj)
{
if(lastobj!=null)
{
lastobj.style.background="";
lastobj.style.color="";
}
obj.style.background="blue";
obj.style.color="white";
lastobj=obj;
}
</script>
<table>
<tr onmouseover=current(this)><td>baseinfo</td><td>baseinfo</td></tr>
<tr onmouseover=current(this)><td>workflow</td><td>workflow</td></tr>
<tr onmouseover=current(this)><td>bbs</td><td>bbs</td></tr>
</table>