/********************************************* MouseOver-Funktion ************************************************/

function wechsel(quelle,bild) {
   document.images[bild].src=quelle;
}

/************************************************** Dia-Show *****************************************************/
function diashow(){
	
	var a = Math.round(4*Math.random());
	dia = "pix/banner/Banner"+a+".jpg";
	window.document.images[1].src=dia;//[a]
	//alert (dia);
	window.setTimeout ('diashow ()' , 6000)
}

/************************************************** Fontsize *****************************************************/
//SCHRIFTGROESSEN
var textsize = 12;
var textsize2 = 14;

function changetextsize(up){
	if(up){
		textsize = parseFloat(textsize)+2;
		textsize2 = parseFloat(textsize2)+2;
	}else{
		textsize = parseFloat(textsize)-2;
		textsize2 = parseFloat(textsize2)-2;
	}
}

function fsize(size,size2,unit){
	var p = document.getElementsByTagName('p');
	var q = document.getElementsByTagName('div');
	var r = document.getElementsByTagName('h1');
	var t = document.getElementsByTagName('h2');
	var u = document.getElementsByTagName('li');
	
	//INNERHALB VON p
   for(i=0;i<p.length;i++) {
	  p[i].style.fontSize = textsize+"px"
   }
   //INNERHALB VON DIV
   for(i=0;i<q.length;i++) {
	  q[i].style.fontSize = textsize+"px"
   }
   //INNERHALB VON h1
   for(i=0;i<r.length;i++) {
	  r[i].style.fontSize = textsize2+"px"
   }
   //INNERHALB VON h2
   for(i=0;i<t.length;i++) {
	  t[i].style.fontSize = textsize2+"px"
   }
   //INNERHALB VON li
   for(i=0;i<u.length;i++) {
	  u[i].style.fontSize = textsize+"px"
   }
	createCookie("textsizestyle", textsize, 365);
}

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 var 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;
}