
function showTable(t){
	for(i=1; document.getElementById('lnk'+i); i++) document.getElementById('lnk'+i).className='lnkOff';
	for(i=0; document.getElementById('t'+i); i++) document.getElementById('t'+i).style.display='none';
	document.getElementById('t'+t).style.display='block';
	document.getElementById('lnk'+t).className='lnkOn';
}


<!-- funciones POPIMAGE: abrir ventana con tamaño imagen -->

PositionX = 100;
PositionY = 100;
defaultWidth  = 500;
defaultHeight = 500;
var AutoClose = true;
if (parseInt(navigator.appVersion.charAt(0))>=4){
var isNN=(navigator.appName=="Netscape")?1:0;
var isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}
var optNN='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
var optIE='scrollbars=no,width=500,height=285,left='+PositionX+',top='+PositionY;
function popImage(imageURL,imageTitle){
	if (isNN){imgWin=window.open('about:blank','',optNN);}
	if (isIE){imgWin=window.open('about:blank','',optIE);}
	with (imgWin.document){
	writeln('<html><head><title>Cargando ...</title><style>body{margin:0px;}</style>');writeln('<sc'+'ript>');
	writeln('var isNN,isIE;');writeln('if (parseInt(navigator.appVersion.charAt(0))>=4){');
	writeln('isNN=(navigator.appName=="Netscape")?1:0;');writeln('isIE=(navigator.appName.indexOf("MSIE")!=-1)?1:0;}');
	writeln('function reSizeToImage(){');writeln('if (isIE){');writeln('window.resizeTo(100,100);');
	writeln('width=100-(document.body.clientWidth-document.images[0].width);');
	writeln('height=100-(document.body.clientHeight-document.images[0].height);');
	writeln('window.resizeTo(width,height);}');writeln('if (isNN){');       
	writeln('window.innerWidth=document.images["imagenes"].width;');writeln('window.innerHeight=document.images["imagenes"].height;}}');
	writeln('function doTitle(){document.title="'+imageTitle+'";}');writeln('</sc'+'ript>');
	if (!AutoClose) writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()">')
	else writeln('</head><body bgcolor=ffffff scroll="no" onload="reSizeToImage();doTitle();self.focus()" onblur="self.close()">');
	writeln('<center><img name="imagenes" src='+imageURL+' style="display:block"></center></body></html>');
	close();		
	}
}

<!-- funciones ABRIR VENTANA -->
var winName="titulo" 
function Abrir_Ventana(theURL,w,h) { 

var windowprops ="top=0,left=0,toolbar=no,location=no,status=no, menubar=no,scrollbars=no, resizable=no,width=" + w + ",height=" + h;

window.open(theURL,winName,windowprops); 
} 


<!-- funciones de gestión MENU -->
function ocultamenu(elemento){
  var menu = document.getElementById(elemento);
  menu.style.display = "none";
}

function despliega(elemento){
  var menu = document.getElementById(elemento);
    if(menu.style.display == "none"){
      menu.style.display = "block";
    }
    else{
      menu.style.display = "none";
    }
}

function ocultatodos(elemento){
  var menu = document.getElementById("menu_concello");
  menu.style.display = "none";
  var menu = document.getElementById("menu_servizos");
  menu.style.display = "none";
  var menu = document.getElementById("menu_turismo");
  menu.style.display = "none";
  var menu = document.getElementById("menu_cultura");
  menu.style.display = "none";
  var menu = document.getElementById("menu_situacion");
  menu.style.display = "none";
  var menu = document.getElementById("menu_poboacion");
  menu.style.display = "none";
  var menu = document.getElementById("menu_xeografia");
  menu.style.display = "none";
  var menu = document.getElementById("menu_online");
  menu.style.display = "none";
  var menu = document.getElementById(elemento);
   menu.style.display = "block";
}

function Abrir_ventana (pagina) 
	{
	var opciones= "";
	window.open(pagina,"",opciones);
	}