var ns4 = (document.layers);
var ie4 = (document.all && !document.getElementById);
var ie5 = (document.all && document.getElementById);
var ns6 = (!document.all && document.getElementById);
var estadoCapa= new Array(0,0,0,0,0,0);  <!-- Estado abierto/cerrado de las capas-->

function mostrarSubmenu(id){

indiceCapa=parseInt(id.substr(id.length -1, 1));

if (estadoCapa[indiceCapa]) { //Si esta abierta, la cierra
	 ocultarSubmenu(id);
	 return;
	 }	 

// Netscape 4
if(ns4){
document.layers[id].visibility = "show";
}
// Explorer 4
else if(ie4){
document.all[id].style.visibility = "visible";
}
// W3C - Explorer 5+ and Netscape 6+
else if(ie5 || ns6){
//document.getElementById(id).style.visibility = "visible";
document.getElementById(id).style.display="block";
}

estadoCapa[indiceCapa]=!(estadoCapa[indiceCapa]); //Invierto el estado

}

function ocultarSubmenu(id){
//Actualizo array de estados
indiceCapa=parseInt(id.substr(id.length -1, 1));
estadoCapa[indiceCapa]=0;
// Netscape 4
if(ns4){
document.layers[id].visibility = "hide";
}
// Explorer 4
else if(ie4){
document.all[id].style.visibility = "hidden";
}
// W3C - Explorer 5+ and Netscape 6+
else if(ie5 || ns6){
document.getElementById(id).style.display="none";
}
}

function abreVentana(pagina, ancho, alto, nombre){ 
	var anchoPantalla = window.screen.width;
	var largoPantalla = window.screen.height;
	var anchoVentana = ancho;
	var largoVentana = alto;
	var pX = (anchoPantalla - anchoVentana) / 2;
	var pY = (largoPantalla - largoVentana) / 2;
	var ventanaCentrada=window.open(pagina,nombre,
"toolbar=0,location=0,directories=0,menubar=0,scrollbars=0,resizeable=0,width="+anchoVentana+",height="+largoVentana+",top="+pY+",left="+pX);
}


function MM_preloadImages() {
  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_swapImgRestore() {
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) {
  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_swapImage() {
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function uno(src,color_entrada) {
	src.bgColor=color_entrada;src.style.cursor="hand";
	}
	function dos(src,color_default) {
	src.bgColor=color_default;src.style.cursor="default";
}