var browser;

function begin_page(){
  
browser = navigator.appName;
base="/ecosistemas/013/";
var plt;
var width;
var cabwidth;
var imgwidth;
    
if (browser == "Netscape") browser="NS"; else browser="IE";
    
if (browser=="NS"){
   plt='plantillans.js';
   width=window.innerWidth;
}
else
{
  plt='plantillaie.js';
  width=document.body.clientWidth;
}



if (width>840) cabwidth=width-38; else cabwidth=802;
imgwidth=cabwidth-492;

if (browser=="NS")
	document.write('<table border="0" height="104" cellpadding="0" cellspacing="0">');
else
	document.write('<table border="0" width="100%" height="104" cellpadding="0" cellspacing="0">');

document.write('<tr>');
document.write('<td width="136" height="104"><img border="0" src="'+base+'images/cabizq.gif" width="136" height="104"></td>');
document.write('<td width="334" height="104"><img border="0" src="'+base+'images/logoecosistemas.gif" width="334" height="104"></td>');
if (browser=="NS")
   document.write('<td width="'+imgwidth+'" height="104"><img width="'+imgwidth+'" border="0" src="'+base+'images/cabmot.gif" height="104"></td>');
else
   document.write('<td background="'+base+'images/cabmot.gif">&nbsp;</td>');
    	
document.write('<td width="20" height="104"><img border="0" src="'+base+'images/cabder.gif" width="20" height="104"></td>');
document.write('</tr>');
document.write('</table>');
document.write('<table table border="0" cellpadding="0" cellspacing="0">');
document.write('<tr><td valign="top">');
document.write('<table border="0" cellpadding="0" cellspacing="0" width="136">');
document.write('<tr>');

document.write('<td background="'+base+'images/latmot.gif">');
document.write('<b><font color="#FFFF00">');

for (f=0;f<ncmenu;f++)
	document.write('<br>&nbsp;&nbsp;'+cmenu[f]);

document.write('</font></b>');
document.write('</td>');
document.write('</tr>');
document.write('<tr>');
document.write('<td><img border="0" src="'+base+'images/latfin.gif" width="136" height="5"></td>');
document.write('</tr>');

for (f=0;f<nbotones;f++){
 if (f!=0) document.write('<tr><td><img border="0" src="'+base+'images/menuinf.gif" width="136" height="5"></td></tr>');
 document.write('<tr><td><img border="0" src="'+base+'images/menusup.gif" width="136" height="2"></td></tr>');
 document.write('<tr><td background="'+base+'images/menumot.gif">');
 document.write('<table width="128" border="0" cellpadding="0" cellspacing="0">');
 document.write('<tr><td width="4"></td><td width="124">');
 document.write('<font size="2">');
 document.write('<a href="'+blinks[f]+'">');
 document.write(botones[f]);
 document.write('</a></font>');
 document.write('</td></tr></table>');
 document.write('</td></tr>');
  
};
document.write('<tr><td><img border="0" src="'+base+'images/menufin.gif" width="136" height="11"></td></tr>');

document.write('<tr><td height="26" background="'+base+'images/botonmenu.gif">');
document.write('<table width="128" border="0" cellpadding="0" cellspacing="0"><tr><td><center>');
document.write('<a href="/ecosistemas/portada.htm">');
document.write('<font size="2" color="#006000">Menú Inicial</font>');
document.write('</a></center></td></tr></table>');
document.write('</td></tr>');

document.write('<tr><td height="26" background="'+base+'images/botonmenu.gif">');
document.write('<table width="128" border="0" cellpadding="0" cellspacing="0"><tr><td><center>');
document.write('<a href="/ecosistemas/hemeroteca/hemeroteca.htm">');
document.write('<font size="2" color="#006000">Nº Anteriores</font>');
document.write('</a></center></td></tr></table>');
document.write('</td></tr>');


for (f=0;f<npublicidad;f++){
   document.write('<tr><td><img border="0" src="'+base+'images/nada.gif"></td></tr>');
   document.write('<tr><td><a href="'+plinks[f]+'">');
   document.write('<img border="0" src="'+base+'images/'+publicidad[f]+'">');
   document.write('</a></td></tr>');
}
document.write('<tr><td><img border="0" src="'+base+'images/nada.gif" WIDTH="2" HEIGHT="2"></td></tr>');
document.write('</table>');
document.write('</td>');
document.write('<td valign="top" width="16">');
document.write('</td>');

document.write('<td valign="top">');
  
}

function end_page(){
document.write('</td></tr>');
document.write('</table>');  	
}