Hola jmqc,
entonces segun me indicas quedaria de la siguiente manera??:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<Script>
function toggle(what) {
var aobj = document.getElementById(what);
if( aobj.style.display == 'none' ) {
aobj.style.display = '';
} else {
aobj.style.display = 'none';
}
}
function CrearXMLHttp(){
XMLHTTP=false;
if(window.XMLHttpRequest){
return new XMLHttpRequest();
}else if(window.ActiveXObject){
return new ActiveXObject("Microsoft.XMLHTTP");
}
}
function OpenPage(url){
req=CrearXMLHttp();
document.getElementById("tdc").innerHTML="<img src='lajaxload.gif'>"; if(req){
req.onreadystatechange = manejador2;
req.open("POST",url,true);
req.send(null);
}
}
function manejador2(){
if(req.readyState == 4){
if(req.status == 200){
document.getElementById("tdc").innerHTML=req.respo nseText;
}else{
alert("Error"+req.statusText)
}
}
}
</Script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Documento sin título</title>
<style type="text/css">
<!--
body {
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
}
-->
</style></head>
<body>
<table width="100%" border="1">
<tr>
<td colspan="2" align="center" bgcolor="#DDFFDD"><strong>HEAD</strong></td>
</tr>
<tr>
<td width="20%" height="510" align="center" valign="top" bgcolor="#EEF7E6"><table width="200" border="1">
<tr>
<td align="center" valign="middle"><a href="javascript
:OpenPage('Pagina1.html')">Link1</a></td>
</tr>
<tr>
<td align="center" valign="middle"><a href="javascript
:OpenPage('Pagina2.html')">Link2</a></td>
</tr>
<tr>
<td align="center" valign="middle"><a href="javascript
:OpenPage('pagina3.html')">Link3</a></td>
</tr>
</table> </td>
<td width="80%" id="tdc" align="left" valign="top" bgcolor="#FFFFCE"><p> </p>
<p> </p>
<p> </p></td>
</tr>
<tr>
<td colspan="2" bgcolor="#DDFFDD"> </td>
</tr>
</table>
</body>
</html>
Gracias de antemano...