function searchHotelsFormSubmit(){
    if(checkForm()){
       document.hotelsSearch.submit();
    }
  }
  function putCityValue(src,clr){
    document.hotelsSearch.city.value=src;
  }
  function cleanUp(obj, txt){
    if(obj.value == txt){
       obj.value='';
    }
    return;
  }
  function hotAp(){
    var wAirport=window.frames['hotFrame'];
    if(null==wAirport.airportDepLoaded || false==wAirport.airportDepLoaded){
       alert("No se pueden mostrar los Hoteles.\nPor favor, actualiza la página.");
       return;
    }
    wAirport.showCity(window.parent.frames['0'].abCity, 1);
  }
  function dcal(eTrig, dMin, dMax, campo, fr, isExt) {
    var wCal=window.frames['idCalendarFrame'];
    if((document.flightsSearch) && (document.flightsSearch.depDate.value=='Soy flexible' && campo!='depDate')){
        alert("Si pulsas sobre el boton buscar, el buscaprecios se encargara de mostrarte las fechas disponibles de retorno.");
        return;
    }
    if(isExt=='true'){
       wCal=window.frames['calendarFrameExt'];
    }
    if(null==wCal.frameIsLoaded || false==wCal.frameIsLoaded){
       alert("No se puede mostrar el calendario.\nPor favor, actualiza la página.");
       return;
    }
    if(eTrig==0){
       if("sopsSearch"==fr){
          wCal.showTheCalendarFrame(window.document.cal1via, dMin, dMax, campo,fr);
       }else{
          if("hotelsSearch"==fr){
             wCal.showTheCalendarFrame(window.document.cal21hot, dMin, dMax, campo,fr);
          }else{
             wCal.showTheCalendarFrame(window.document.cal1bt, dMin, dMax, campo,fr);
          }
       }
    }else{
       if("hotelsSearch"==fr){
          wCal.showTheCalendarFrame(window.document.cal2hot, dMin, dMax, campo,fr);
       }else{
          wCal.showTheCalendarFrame(window.document.cal2bt, dMin, dMax, campo,fr);
       }
    }
  }
  function anyadirDias(pDate,pTotalDias,ptipo){
    fecha = new Date(pDate.substring(3,5) + "/" + pDate.substring(0,2)+ "/" + pDate.substring(6));
    fecha.setTime(fecha.getTime()+(pTotalDias*24*60*60*1000));
    dia = fecha.getDate();
    if(dia<10){
       dia = "0" + dia;
    }
    mes = fecha.getMonth()+1;
    if(mes<10){
       mes = "0" + mes;
    }
    return (ptipo=='data') ? dia+"/"+mes+"/"+takeYear(fecha) : takeYear(fecha)+""+mes+""+dia;
  }
  function takeYear(theDate){
    x = theDate.getYear();
    var y = x % 100;
    y += (y < 38) ? 2000 : 1900;
    return y;
  }
  function checkForm(){
    //Check Destination
    if(document.hotelsSearch.city.value==''){
       alert("Please choose a city");
       document.hotelsSearch.city.focus();
       return false;
    }
    if(!parseDate(document.hotelsSearch.arrivalDate.value)){
        alert("Invalid Arrival Date");
        document.hotelsSearch.arrivalDate.focus();
        return false;
    }
    if(!parseDate(document.hotelsSearch.departureDate.value)){
        alert("Invalid Departure Date");
        document.hotelsSearch.departureDate.focus();
        return false;
    }
    //Check number of people per room (max 4 inc children)
    var numadults = parseInt(document.getElementById('idnumadults').value);
    var numchildren = parseInt(document.getElementById('idnumchildren').value);
    var numpeoplehab = numadults + numchildren;
    if(numpeoplehab > 4){
       alert("Max 4 persons for room");
       return false;
    }
    //Converting the two dates from gg/mm/aaaa to ggmmaaaa for the search-engine
    var gg_mm_aaaa = document.hotelsSearch.arrivalDate.value;
    var ggmmaaaa   = gg_mm_aaaa.substr(0, 2)
                   + gg_mm_aaaa.substr(3, 2)
                   + gg_mm_aaaa.substr(6, 4);
    document.hotelsSearch.checkInDate.value = ggmmaaaa;
    
    gg_mm_aaaa     = document.hotelsSearch.departureDate.value;
    ggmmaaaa       = gg_mm_aaaa.substr(0, 2)
                   + gg_mm_aaaa.substr(3, 2)
                   + gg_mm_aaaa.substr(6, 4);
    document.hotelsSearch.checkOutDate.value = ggmmaaaa;

    return true;
  }

  function parseDate(dateString){
    if(dateString.length != 10){
       return false;
    }
    if((dateString.charAt(2) !='/') || (dateString.charAt(5) != '/')){
        return false;
    }
    var diafecha, mesfecha, anyofecha;
    var d       = new Date();
    var diasmes = [0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    diafecha    = dateString.substring(0, 2);
    mesfecha    = dateString.substring(3, 5);
    anyofecha   = dateString.substring(6);
    if(isNaN(diafecha) || isNaN(mesfecha) || isNaN(anyofecha)){
       return false;
    }
    if(anyofecha < d.getYear()){
       return false;
    }
    if((mesfecha < 1) || (mesfecha > 12)){
        return false;
    }
    if((diafecha < 1) || (diafecha > diasmes[mesfecha])){
        return false;
    }
    return true;
  }