var loaded = false;

function init()
{
 if (document.images)
 {
  prev_down = new Image(24,24);
  prev_down.src = "http://www.nalsite.com/Imagenes/prev_down.bmp";
  prev_over = new Image(24,24);
  prev_over.src = "http://www.nalsite.com/Imagenes/prev_over.bmp";
  top_down = new Image(24,24);
  top_down.src = "http://www.nalsite.com/Imagenes/top_down.bmp";
  top_over = new Image(24,24);
  top_over.src = "http://www.nalsite.com/Imagenes/top_over.bmp";
  sig_down = new Image(24,24);
  sig_down.src = "http://www.nalsite.com/Imagenes/sig_down.bmp";
  sig_over = new Image(24,24);
  sig_over.src = "http://www.nalsite.com/Imagenes/sig_over.bmp";
 }

 loaded = true;
}

if (document.images)
{
 prev_off = new Image(24,24);
 prev_off.src = "http://www.nalsite.com/Imagenes/prev_off.bmp";
 top_off = new Image(24,24);
 top_off.src = "http://www.nalsite.com/Imagenes/top_off.bmp";
 sig_off = new Image(24,24);
 sig_off.src = "http://www.nalsite.com/Imagenes/sig_off.bmp";
}

function setBtn(imgID,mode)
{
 if ((document[imgID]) && (loaded))
 {
  document[imgID].src = eval(imgID + "_" + mode + ".src");
 }
}

function IEboxremove()
{
 if (document.selection)
  document.selection.empty();
}

function SearchFormValidator()
{
 if (document.SearchForm.SearchString.value == "")
 {
  alert("Introduce una cadena a buscar");
  document.SearchForm.SearchString.focus();

  return (false);
 }

 return (true);
}

function NewsletterValidator()
{
 if (document.NewsletterForm.NewsletterEmail.value == "")
 {
  alert("Husk at udfylde din email adresse!");
  document.NewsletterForm.NewsletterEmail.focus();
  return (false);
 }

 if (document.NewsletterForm.NewsletterEmail.value.length < 6)
 {
  alert("Den indtastede email adresse kan ikke benyttes.\nKontroller at den er korrekt indtastet.");
  document.NewsletterForm.NewsletterEmail.focus();
  return (false);
 }

 return (true);
}

function openWindow(scriptName,width,height)
{
 displayWindow = window.open(scriptName,"displayWindow","toolbar=0,resizable=0,directories=0,status=0,menubar=0,scrollbars=0,location=0,width=" + width + ",height=" + height)
}

function menuOvr(src,clrOver)
{
 if (!src.contains(event.fromElement))
 {
  src.style.cursor = 'hand';
  src.bgColor = clrOver;
  src.children.tags('A')[0].style.color = '#000000';
 }
}

function menuDwn(src,clrDwn)
{
 if (!src.contains(event.fromElement))
 {
  src.style.cursor = 'hand';
  src.bgColor = clrDwn;
  src.children.tags('A')[0].style.color = '#FFFFFF';
 }
}

function menuOut(src,clrOut)
{
 if (!src.contains(event.toElement))
 {
  src.style.cursor = 'default';
  src.bgColor = clrOut;
  src.children.tags('A')[0].style.color = '#000000';
 }
}

function trim(s)
{
 fixedTrim = "";
 lastCh = " ";

 for (x=0; x < s.length; x++)
 {
  ch = s.charAt(x);

  if ((ch != " ") || (lastCh != " "))
   fixedTrim += ch;

  lastCh = ch;
 }

 if (fixedTrim.charAt(fixedTrim.length - 1) == " ")
  fixedTrim = fixedTrim.substring(0, fixedTrim.length - 1);

 return fixedTrim
}

function isValidEmail(s)
{
 var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
 var check=/@[\w\-]+\./;
 var checkend=/\.[a-zA-Z]{2,3}$/;

 if (((s.search(exclude) != -1) || (s.search(check)) == -1) || (s.search(checkend) == -1))
  return (false);
 else
  return (true);
}

function ConstructorArray(n)
{
 this.length=n
 return this
}

function CadenaFecha(fecha)
{
 NombreMes = new ConstructorArray(12)

 NombreMes[0]="Enero"
 NombreMes[1]="Febrero"
 NombreMes[2]="Marzo"
 NombreMes[3]="Abril"
 NombreMes[4]="Mayo"
 NombreMes[5]="Junio"
 NombreMes[6]="Julio"
 NombreMes[7]="Agosto"
 NombreMes[8]="Septiembre"
 NombreMes[9]="Octubre"
 NombreMes[10]="Noviembre"
 NombreMes[11]="Diciembre"

 NombreDia = new ConstructorArray(7)
 NombreDia[0]="Domingo"
 NombreDia[1]="Lunes"
 NombreDia[2]="Martes"
 NombreDia[3]="Miércoles"
 NombreDia[4]="Jueves"
 NombreDia[5]="Viernes"
 NombreDia[6]="Sábado"

 var Dia= NombreDia [fecha.getDay()]
 var Mes= NombreMes [fecha.getMonth()]
 var browType=""
 browType=navigator.appName

 if(browType=="Microsoft Internet Explorer")
 {
  var Anyo=fecha.getYear()
 }
 else
 {
  var Anyo=fecha.getYear() + 1900
 }

 return Dia + ", " + fecha.getDate()+ " de " + Mes + " de " + Anyo
}