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("fontsize");
  var size = cookie
  setFontSize(size);
}


/* die Funktion SetFontSize benoetigt die Javascript Library "jquery" */
function setFontSize(size) {
		$("#content").css("font-size",size+"%");
		createCookie("fontsize", size, 365);
		
		if ( size == '80' ) {
		  	$('#aKlein').css('font-weight','bold').css('text-decoration','underline');
			$('#aMittel, #aGross').css('font-weight','normal').css('text-decoration','none');
		}
		
		if ( size == '100' ) {
		  	$('#aMittel').css('font-weight','bold').css('text-decoration','underline');
			$('#aKlein, #aGross').css('font-weight','normal').css('text-decoration','none');
		}
		
		if ( size == '120' ) {
			$('#aGross').css('font-weight','bold').css('text-decoration','underline');
			$('#aMittel, #aKlein').css('font-weight','normal').css('text-decoration','none');
		}
}

var cookie = readCookie("fontsize");
var size = cookie

if ( size == '80' ) {
  $('#aKlein').css('font-weight','bold').css('text-decoration','underline');
}

if (size == 'null' || size == '100') {
  size = '100';
  $('#aMittel').css('font-weight','bold').css('text-decoration','underline');
}

if ( size == '120' ) {
	$('#aGross').css('font-weight','bold').css('text-decoration','underline');
}

setFontSize(size);