Por que no me funciona esto?? (mouseover)
Código HTML:
<TD background= "images/gradient.gif" onmouseover='this.style.background-image=url("images/gradient_hover.gif")' WIDTH="15%" HEIGHT="22"><FONT FACE="VERDANA" COLOR="white" style="font-size:10pt;font-weight:bold"> <a href="foro">foro</a></font></TD>