var n28= new Array();
	for(i=1; i<4; i++) { n28[i] = new Image();}
	n28[1] .src = "../botones/of28.gif";
	n28[2] .src = "../botones/ov28.gif";
	n28[3] .src = "";
var n56= new Array();
	for(i=1; i<4; i++) { n56[i] = new Image();}
	n56[1] .src = "../botones/of56.gif";
	n56[2] .src = "../botones/ov56.gif";
	n56[3] .src = "";
var n128= new Array();
	for(i=1; i<4; i++) { n128[i] = new Image();}
	n128[1] .src = "../botones/of128.gif";
	n128[2] .src = "../botones/ov128.gif";
	n128[3] .src = "";
var nabrir= new Array();
	for(i=1; i<4; i++) { nabrir[i] = new Image();}
	nabrir[1] .src = "../botones/ofabrir.gif";
	nabrir[2] .src = "../botones/ovabrir.gif";
	nabrir[3] .src = "";
	
var nsup= new Array();
	for(i=1; i<4; i++) { nsup[i] = new Image();}
	nsup[1] .src = "../botones/ofsuperior.gif";
	nsup[2] .src = "../botones/ovsuperior.gif";
	nsup[3] .src = "";
	
var npreg= new Array();
	for(i=1; i<4; i++) { npreg[i] = new Image();}
	npreg[1] .src = "../botones/ofpreguntas.gif";
	npreg[2] .src = "../botones/ovpreguntas.gif";
	npreg[3] .src = "";
	
var narch= new Array();
	for(i=1; i<4; i++) { narch[i] = new Image();}
	narch[1] .src = "../botones/ofarchivos.gif";
	narch[2] .src = "../botones/ovarchivos.gif";
	narch[3] .src = "";
	
var nforo= new Array();
	for(i=1; i<4; i++) { nforo[i] = new Image();}
	nforo[1] .src = "../botones/oforo.gif";
	nforo[2] .src = "../botones/ovforo.gif";
	nforo[3] .src = "";
	
var nforo2= new Array();
	for(i=1; i<4; i++) { nforo2[i] = new Image();}
	nforo2[1] .src = "../botones/oforo2.gif";
	nforo2[2] .src = "../botones/ovforo2.gif";
	nforo2[3] .src = "";

var nagenda= new Array();
	for(i=1; i<4; i++) { nagenda[i] = new Image();}
	nagenda[1] .src = "../botones/ofagendab.gif";
	nagenda[2] .src = "../botones/ovagendab.gif";
	nagenda[3] .src = "";
	
var nurl= new Array();
	for(i=1; i<4; i++) { nurl[i] = new Image();}
	nurl[1] .src = "../botones/ofurlsinton.gif";
	nurl[2] .src = "../botones/ovurlsinton.gif";
	nurl[3] .src = "";

var ncorreo2= new Array();
	for(i=1; i<4; i++) { ncorreo2[i] = new Image();}
	ncorreo2[1] .src = "../botones/ofcorreogrand.gif";
	ncorreo2[2] .src = "../botones/ovcorreogrand.gif";
	ncorreo2[3] .src = "";

function prende(sel,nSel){
	if(document.images){
	sel.src = nSel[3].src;
	}
}
function apaga(sel,nSel){
	if(document.images){
	sel.src = nSel[1].src;
	}
}
function bover_on(sel,nSel){
	if(document.images && (sel.src != nSel[3].src)){
	sel.src = nSel[2].src;
	}
}
function bover_off(sel,nSel){
	if(document.images && (sel.src != nSel[3].src)){
	sel.src = nSel[1].src;
	}
}

function lSeleccionado(sLista) {
	for(i=0; i<sLista.options.length; i++) {if(sLista.options(i).selected) return sLista.options(i).text }
	return 'Todos'
}
function lSeleccionar(sLista,valor) {
	if (valor==null) sLista.options(0).selected=true
	else 	for(i=0; i<sLista.options.length; i++) {sLista.options(i).selected=(sLista.options(i).text==valor)}
}
function lSeleccionarV(sLista,valor) {
	if (valor==null) sLista.options(0).selected=true
	else 	for(i=0; i<sLista.options.length; i++) {sLista.options(i).selected=(sLista.options(i).value==valor)}
}