el codigo de mi index es este:
<html>
<HEAD>
<TITLE>CETI S.A.</TITLE>
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_nbGroup(event, grpName) { //v6.0
var i,img,nbArr,args=MM_nbGroup.arguments;
if (event == "init" && args.length > 2) {
if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
nbArr[nbArr.length] = img;
for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
if (!img.MM_up) img.MM_up = img.src;
img.src = img.MM_dn = args[i+1];
nbArr[nbArr.length] = img;
} }
} else if (event == "over") {
document.MM_nbOver = nbArr = new Array();
for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
if (!img.MM_up) img.MM_up = img.src;
img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
nbArr[nbArr.length] = img;
}
} else if (event == "out" ) {
for (i=0; i < document.MM_nbOver.length; i++) {
img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
} else if (event == "down") {
nbArr = document[grpName];
if (nbArr)
for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
document[grpName] = nbArr = new Array();
for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
if (!img.MM_up) img.MM_up = img.src;
img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
nbArr[nbArr.length] = img;
} }
}
//-->
</script>
<script type="text/javascript" src="javascript/resolucion.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_reloadPage(init) { //reloads the window if Nav4 resized
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
</script>
<style type="text/css">
<!--
.Estilo2 {color: #FFFFFF}
.Estilo3 {
font-size: 9px;
font-family: "Times New Roman", Times, serif;
}
-->
</style>
</HEAD>
<div align="center" id="content">
<div id="cabecera"></div>
<div id="contenido" align="left">
<iframe name="principal" src="inicio.htm" align="left" frameborder="0" width="99%" height="399px" scrolling="auto"> </iframe>
</div>
<div id="pie">
<table height="30" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="30"></td>
</tr>
<tr>
<td><a href="inicio.htm" target="principal" onClick="MM_nbGroup('down','group1','inicio','',1) " onMouseOver="MM_nbGroup('over','inicio','images/active_inicio.png','',1)" onMouseOut="MM_nbGroup('out')"><img src="images/inactive_inicio.png" alt="" name="inicio" border="0" onload=""></a></td>
<td><a href="nosotros.htm" target="principal" onClick="MM_nbGroup('down','group1','nosotros','', 1)" onMouseOver="MM_nbGroup('over','nosotros','images/active_nosotros.png','',1)" onMouseOut="MM_nbGroup('out')"><img name="nosotros" src="images/inactive_nosotros.png" border="0" alt="" onLoad=""></a></td>
<td><a href="servicios.htm" target="principal" onClick="MM_nbGroup('down','group1','servicios','' ,1)" onMouseOver="MM_nbGroup('over','servicios','images/active_servicios.png','',1)" onMouseOut="MM_nbGroup('out')"><img name="servicios" src="images/inactive_servicios.png" border="0" alt="" onLoad=""></a></td>
<td><a href="clientes.html" target="principal" onClick="MM_nbGroup('down','group1','clientes','', 1)" onMouseOver="MM_nbGroup('over','clientes','images/active_clientes.png','',1)" onMouseOut="MM_nbGroup('out')"><img name="clientes" src="images/inactive_clientes.png" border="0" alt="" onLoad=""></a></td>
<td><a href="contacto.htm" target="principal" onClick="MM_nbGroup('down','group1','contacto','', 1)" onMouseOver="MM_nbGroup('over','contacto','images/active_contacto.png','',1)" onMouseOut="MM_nbGroup('out')"><img src="images/inactive_contacto.png" alt="" name="contacto" width="100" height="20" border="0" onLoad=""></a></td>
</tr>
</table>
</div>
</div>
</BODY>
</HTML>