//logo menu principal
function MM_findObj(n, d) { //v4.01
  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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
//Menu de Otavalo market
function mostrar(nombreCapa){
document.getElementById(nombreCapa).style.display="block";
}
function ocultar(nombreCapa){
document.getElementById(nombreCapa).style.display="none";
}
//formulario de contacto
function ismaxlength(obj,val){
if (obj.getAttribute && obj.value.length>val)
obj.value=obj.value.substring(0,val)
}

function validar(formulario){
var aviso = "";
var prefijo = "";
if(formulario=='contact') prefijo='c';
else prefijo='p';

if(!document.getElementById(prefijo+'nombre').value) {aviso+= "Enter your name, please\n"}
if(!document.getElementById(prefijo+'email').value) {aviso+= "Enter your e-mail account, please\n"}
if(!document.getElementById(prefijo+'interes').value || document.getElementById(prefijo+'interes').value==="- Choose an option -") {aviso+= "Choose your interest, please\n"}
if(!document.getElementById(prefijo+'comentario').value) {aviso+= "Write your comment, please\n"}
if(aviso) { alert(aviso); }
else { document.getElementById(formulario).submit(); }
}