// Menueffekte laden
window.addEvent('domready', function(){
  navi_slider1 = new Fx.Slide('slider1', {duration: 500});navi_slider1.hide();
  navi_slider2 = new Fx.Slide('slider2', {duration: 500});navi_slider2.hide();
  navi_slider3 = new Fx.Slide('slider3', {duration: 500});navi_slider3.hide();
});

// oben scrollen
function scrolltotop()
{
  var winScroller = new Fx.Scroll(window);
	  winScroller.toTop().chain(function (){});
}

// Hintergrundbild aendern
function change_background(color)
{

  switch (color) {
    case "blue":
      $(document.body).setStyle('background', '#006eb9 url(images/background.jpg)'); 
      var cookie_background  = Cookie.write('background', 'blue', {duration: 365});
        break;
      
    case "green": 
      $(document.body).setStyle('background', '#00b970 url(images/background_green.jpg)'); 
      var cookie_background  = Cookie.write('background', 'green', {duration: 365});
        break;
      
    case "purple":
      $(document.body).setStyle('background', '#5900b9 url(images/background_purple.jpg)'); 
      var cookie_background  = Cookie.write('background', 'purple', {duration: 365});
        break;

  }
  
  $(document.body).setStyle('background-repeat', 'no-repeat'); 
  $(document.body).setStyle('background-position', 'center top'); 
}

// Hintergrundbild cookie auslesen und ggf. Hintergrundbild aendern
function read_cookie_background()
{
  switch (Cookie.read('background')) {
    case "green":
      change_background('green');
        break;
    
    case "purple":
      change_background('purple');
        break;    
  }
}

// Html in divlayer nachladen
function ajax_request (url,div)
{
new Request.HTML({
	url: '/' + url,
	method: 'get',
	update: div,
	evalScripts: true
}).send();
}

// Popup
function popup(name,einstellungen)
{
  window.open('',name,einstellungen);
}

function preload(imgObj,imgSrc) {
  if (document.images) {
    eval(imgObj+' = new Image()')
    eval(imgObj+'.src = "'+imgSrc+'"')
  }
}