function setCookie(name, wert, domain, expires, path, secure){
   var cook = name+'='+unescape(wert);
   cook += (domain) ? "; domain="+ domain : "";
   cook += (expires) ? "; expires="+expires : "";
   cook += (path) ? "; path="+path : "";
   cook += (secure) ? "; secure" : "";
   document.cookie = cook;
}

function setFontsize(size) {

  if (navigator.cookieEnabled) {

    var cookie, pair, fontsize = 101;
    var cookies = document.cookie.split(';');
    var len = cookies.length;
    var set_cookie = true;

    for(var i=0; i < len; i++) {
      cookie = cookies[i];
      while (cookie.charAt(0)==' ') cookie = cookie.substring(1, cookie.length);
      pair = cookie.split('=');

      if ((pair[0] == 'fontsizeR') || (pair[0] == 'fontsize')) {
        fontsize = pair[1];
        break;
      }
    }

    if (size == 'reset') {
      fontsize = 101;
    } else if (size == '') {
      set_cookie = false;
    } else {
      fontsize = (fontsize*1 + size*1);
    }
    
    var html = document.getElementsByTagName('html')[0];

    html.style.fontSize = (fontsize + '%');

    if (set_cookie) {
      setCookie('fontsize', fontsize, null, null, '/', null);
        expires = new Date();
        next_year = expires.getTime() + (60*60*24*365);
        expires.setTime(next_year);
      setCookie('fontsizeR', fontsize, null, expires.toGMTString(), '/', null);
    }

//		alert(document.cookie);
  }

}