Código HTML:
Ver original<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <script language="JavaScript" type="text/JavaScript">
function showdiv(id){
div=document.getElementById('flotante');
detalle=document.getElementById(id);
div.innerHTML=detalle.innerHTML
div.style.display='';
}
function hidediv() {
div = document.getElementById('flotante');
div.style.display='none';
}
<!--
#flotante {
background-color: #FF0000;
position: absolute;
left: 0px;
top: 0px;
right: 0px;
bottom: 0px;
}
-->
<td id="c1" onmouseover="showdiv(this.id)" onmouseout="hidediv()">1
</td> <td id="c2" onmouseover="showdiv(this.id)" onmouseout="hidediv()">2
</td> <td id="c3" onmouseover="showdiv(this.id)" onmouseout="hidediv()">3
</td> <td id="c4" onmouseover="showdiv(this.id)" onmouseout="hidediv()">4
</td> <div id="flotante" style="display:none" >123
</div>
A mi no me desaparece en firefox!!!...