/**
 * JS fuer Fontsize-Switcher und Simplify-Funktion

 * @author timschroder
 */


var fontsize = 7.5;
    
  
function fontsizedown() {
    if(fontsize > 4.0){
        fontsize -= 0.5;
    }
    document.body.style.fontSize = fontsize+"pt";
	setActive();
}
function fontsizeup() {
    fontsize += 0.5;
    document.body.style.fontSize = fontsize+"pt";
	setActive();
}
function fontsizereset() {
    fontsize = 7.5;
    document.body.style.fontSize = fontsize+"pt";
	setActive();
}

function setActive() {
    if(fontsize < 7.5) {
    	$('smallFont').addClassName('active');
		$('resetFont').removeClassName('active');
		$('bigFont').removeClassName('active');
    } else if(fontsize > 7.5) {
    	$('smallFont').removeClassName('active');
		$('resetFont').removeClassName('active');
		$('bigFont').addClassName('active');
    } else {
    	$('smallFont').removeClassName('active');
		$('resetFont').addClassName('active');
		$('bigFont').removeClassName('active');
    }
}


function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = function(e) {
  var cookie = readCookie("size");
  fontsize = cookie ? parseFloat(cookie) : 7.5;
  document.body.style.fontSize = fontsize+"pt";
  setActive();

}

window.onunload = function(e) {
  createCookie("size", fontsize, 365);
}



var duration = 0.5;
var opacity = 0.6;
	
function simplify(){
	new Effect.Opacity('companyHeader', {duration:duration, from:1.0, to:opacity});
	new Effect.Opacity('rightArea', {duration:duration, from:1.0, to:opacity});
	if($('sidebar')){
		new Effect.Opacity('sidebar', {duration:duration, from:1.0, to:opacity});
	}
	if($('relatedImageTeaser')){
		new Effect.Opacity('relatedImageTeaser', {duration:duration, from:1.0, to:opacity});
	}
	if($('newsletter_abo')){
		new Effect.Opacity('newsletter_abo', {duration:duration, from:1.0, to:opacity});
	}
	
	if($('menu_vorteilsshop_bg')){
		new Effect.Opacity('menu_vorteilsshop_bg', {duration:duration, from:1.0, to:opacity});
	}
	
	if($('gemeration_header')){
		new Effect.Opacity('gemeration_header', {duration:duration, from:1.0, to:opacity});
	}
	if($('teaser-container')){
		new Effect.Opacity('teaser-container', {duration:duration, from:1.0, to:opacity});
	}
	
	new Effect.Opacity('menu', {duration:duration, from:1.0, to:opacity});
	new Effect.Fade('simplify', {duration:duration, queue: 'front'});
	new Effect.Appear('normalize', {duration:duration, queue: 'end'});
	enableStyleSheet('simplify');
}

function normalise(){
	new Effect.Appear('companyHeader', {duration:duration});
	new Effect.Appear('rightArea', {duration:duration});
	if($('sidebar')){
		new Effect.Appear('sidebar');
	}
	if($('relatedImageTeaser')){
		new Effect.Appear('relatedImageTeaser');
	}
	if($('newsletter_abo')){
		new Effect.Appear('newsletter_abo');
	}
	if($('gemeration_header')){
		new Effect.Appear('gemeration_header');
	}
	if($('teaser-container')){
		new Effect.Appear('teaser-container');
	}
	if($('menu_vorteilsshop_bg')){
		new Effect.Appear('menu_vorteilsshop_bg');
	}
	new Effect.Appear('menu', {duration:duration});
	new Effect.Appear('simplify', {duration:duration, queue: 'end'});
	new Effect.Fade('normalize', {duration:duration, queue: 'front'});
	disableStyleSheet('simplify');
}

function enableStyleSheet(title) {
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
}
function disableStyleSheet(title) {
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = true;
		}
	}
}