if (document.getElementById){ 
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
}

var persistmenu="yes" //"yes" or "no". Make sure each SPAN content contains an incrementing ID starting at 1 (id="sub1", id="sub2", etc)
var persisttype="sitewide" //enter "sitewide" for menu to persist across site, "local" for this page only

function menux(funcion)
{
	//pongo todo oculto
	document.getElementById("home").style.display = "none"
	document.getElementById("main").style.display = "none"
	document.getElementById("servicios").style.display = "none"
	document.getElementById("comprar").style.display = "none"


	//reviso que tengo que poner visible
	switch(funcion)
	{
	case "home":
		document.getElementById("home").style.display = "block"
		break    
	case "servicios":
		document.getElementById("servicios").style.display = "block"
		break    
	case "productos":
		document.getElementById("main").style.display = "block"
		break    		
	case "comprar":
		document.getElementById("comprar").style.display = "block"
		
	}	
}

function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		if(el.style.display != "block"){ //DynamicDrive.com change
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") //DynamicDrive.com change
				ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

function get_cookie(Name) { 
var search = Name + "="
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) { 
offset += search.length
end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function onloadfunction(){
if (persistmenu=="yes"){
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=get_cookie(cookiename)
if (cookievalue!="")
document.getElementById(cookievalue).style.display="block"
}
}

function savemenustate(){
var inc=1, blockid=""
while (document.getElementById("sub"+inc)){
if (document.getElementById("sub"+inc).style.display=="block"){
blockid="sub"+inc
break
}
inc++
}

var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
document.cookie=cookiename+"="+cookievalue
}

if (window.addEventListener)
window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
window.onload=onloadfunction

if (persistmenu=="yes" && document.getElementById)
window.onunload=savemenustate

function CargarProducto(producto,categoria){
	var direccion,i
	direccion = categoria + "/" + producto + ".html"
        //alert(direccion)
	parent.document.getElementById("productos").src = direccion
}

function cargar_iframe(pagina){
	//alert(pagina)
	document.getElementById("productos").src = pagina;
	document.getElementById("productos").style.display = "block";

}

function resizeIframe() {

	// Must launched on the body onload event handler for IE
	// Use document.documentElement if you are in Compat mode
	i = parent.document.getElementById("productos")
	iHeight = document.body.scrollHeight
	if (iHeight + 10 < 600)
	{
		altura = 600
	}
	else
	{
		altura = iHeight + 10 
	}
	i.style.height = altura + "px"

}