// CSS fehlt:    id="efaTest"  id="fontsizer" id="fontsizehead" class="navhead"> class="fixfloat" class="navitems


var efa_default = 85;
var efa_increment = 10;               // <strong>Schrift:</strong> <br />
var efa_bigger = ['<span class="webmaster">Schriftgröße<br /></span>',
        '<img src="/img/a_gross.gif" class="schrifta" border="0" alt="Schrift größer">',
        'Schrift gr&ouml;sser stellen',
        '',
        '',
        '',
        '',
        '',
        '',
        '',
        ' '
        ]

var efa_smaller = ['',
        '<img src="/img/a_klein.gif" class="schrifta" border="0" alt="Schrift kleiner">',
        'Schrift kleiner stellen',
        '',
        '',
        '',
        '',
        '',
        '',
        '',
        ''
        ]

function Efa_Fontsize(increment,bigger,smaller,def) {
        this.w3c = (document.getElementById);
        this.ms = (document.all);
        this.userAgent = navigator.userAgent.toLowerCase();
        this.isMacIE = ((this.userAgent.indexOf('msie') != -1) && (this.userAgent.indexOf('mac') != -1) && (this.userAgent.indexOf('opera') == -1));
        this.isOldOp = ((this.userAgent.indexOf('opera') != -1)&&(parseFloat(this.userAgent.substr(this.userAgent.indexOf('opera')+5)) <= 7));

        if ((this.w3c || this.ms) && !this.isOldOp && !this.isMacIE) {
                this.name = "efa_fontSize";
                this.cookieName = 'efaSize';
                this.increment = increment;
                this.def = def;
                this.defPx = Math.round(16*(def/100))
                this.base = 1;
                this.pref = this.getPref();
                this.testHTML = '<div id="efaTest" style="position:absolute;visibility:hidden;line-height:1em;">&nbsp;</div>';
                this.biggerLink = this.getLinkHtml(1,bigger);
                this.smallerLink = this.getLinkHtml(-1,smaller);
        } else {
                this.biggerLink = '<div id="fontsizer"><div id="fontsizehead" class="navhead"><h3><span>Stil:<' +'/span><' +'/h3><' +'/div><br class="fixfloat" ' +'/><div class="navitems">';
                this.smallerLink = '';
                this.efaInit = new Function('return true;');
        }

        this.allLinks = this.biggerLink + this.smallerLink;
}

Efa_Fontsize.prototype.efaInit = function() {
                document.writeln(this.testHTML);
                this.body = (this.w3c)?document.getElementsByTagName('body')[0].style:document.all.tags('body')[0].style;
                this.efaTest = (this.w3c)?document.getElementById('efaTest'):document.all['efaTest'];
                var h = (this.efaTest.clientHeight)?parseInt(this.efaTest.clientHeight):(this.efaTest.offsetHeight)?parseInt(this.efaTest.offsetHeight):999;
                if (h < this.defPx) this.base = this.defPx/h;
                this.body.fontSize = Math.round(this.pref*this.base) + '%';
}

Efa_Fontsize.prototype.getLinkHtml = function(direction,properties) {
        var html = properties[0] + '<a href="#" onclick="efa_fontSize.setSize(' + direction + '); return false;"';
        html += (properties[2])?'title="' + properties[2] + '"':'';
        html += (properties[3])?'class="' + properties[3] + '"':'';
        html += (properties[4])?'id="' + properties[4] + '"':'';
        html += (properties[5])?'name="' + properties[5] + '"':'';
        html += (properties[6])?'accesskey="' + properties[6] + '"':'';
        html += (properties[7])?'onmouseover="' + properties[7] + '"':'';
        html += (properties[8])?'onmouseout="' + properties[8] + '"':'';
        html += (properties[9])?'onfocus="' + properties[9] + '"':'';
        return html += '>'+ properties[1] + '<' + '/a>' + properties[10];
}

Efa_Fontsize.prototype.getPref = function() {
        var pref = this.getCookie(this.cookieName);
        if (pref) return parseInt(pref);
        else return this.def;
}

Efa_Fontsize.prototype.setSize = function(direction) {
        this.pref = (direction)?this.pref+(direction*this.increment):this.def;
        this.setCookie(this.cookieName,this.pref);
        this.body.fontSize = Math.round(this.pref*this.base) + '%';
}

Efa_Fontsize.prototype.getCookie = function(cookieName) {
        var cookie = cookieManager.getCookie(cookieName);
        return (cookie)?cookie:false;
}

Efa_Fontsize.prototype.setCookie = function(cookieName,cookieValue) {
        return cookieManager.setCookie(cookieName,cookieValue);
}

var  efa_fontSize = new Efa_Fontsize(efa_increment,efa_bigger,efa_smaller,efa_default);