function check(form){
   if (form.name.value == "")
   {
      alert ("Please enter your name.");
      form.name.focus();
      return false;
   }

   if (form.apellido.value == "")
   {
      alert ("Please enter your family name");
      form.apellido.focus();
      return false;
   }

   if (form.email.value == "")
   {
      alert ("Please enter your e-mail");
      form.email.focus();
      return false;
   }

   var arrival;
   var depart;
   arrival = form.arrival.selectedIndex;
   depart = form.departure.selectedIndex;

   if (((depart - arrival) < 0))
   {
      alert ("Please check arrival and depart dates");
      form.arrival.focus();
      return false;
   }
   return true;
}

var login_mode=0;

function selectAction(target)
{
    login_mode = target!=0 ? 1 : 0;
}
function check_login(form)
{
    if (login_mode)
        return true;
    
    if (form.username.value == "") {
        alert ("Please enter your name.");
        form.username.focus();
        return false;
    }
    if (form.passwd.value == "") {
        alert ("Please enter your password.");
        form.passwd.focus();
        return false;
    }
    return true;
}

function check_true(form)
{
    return true;
}

function check_passwd(form)
{
   if (form.username.value=="") {
      alert ("Please enter your name.");
      form.username.focus();
      return false;
   }
   if (form.passwd.value=="") {
      alert ("Please enter your password.");
      form.passwd.focus();
      return false;
   }
   if (form.passwd0.value=="") {
      alert ("Please enter your password confirmation.");
      form.passwd0.focus();
      return false;
   }
   if ( form.passwd.value != form.passwd0.value ) {
      alert ("the password confirmation did not match the password. Give the password again");
      form.passwd.focus();
      return false;
   }
   return true;
}

//Image or picture slide show using java script
//slideshow function

function show_picture(ip){
   frame = window.parent.frames[2];
   slide = frame.document.getElementById('picture');
   slide.src = window.parent.imgArray[ip];
}


function check_picture(ip)
{
   frame = document.getElementById('picture');
   if ( frame.src != window.parent.imgArray[ip] )
      frame.src = window.parent.imgArray[ip];
}