codice:
<html> 
<head> 
<script> 
function mostra(){
z=document.getElementById('TabHidden').style;
document.getElementById('imm').src=(z.visibility=='hidden')?"Image2.jpg":"Image1.jpg";
z.visibility=(z.visibility=='hidden')?'visible':'hidden';
}
</script>
<title></title> 
</head>
<body> 
<table border="0" width="10%">
 <tr>
    <td>[img]Image1.jpg[/img]<span onClick="mostra()" style="cursor:hand">ciao<span></td>
 </tr>

 <tr>
  <table id="TabH.......
Il resto è uguale.

ciao