onError=null;

if (document.images) var pl = new Array();

var activetab = null;
var closetab  = null;
var std_img   = 'start';

function Tover(what)        {};
function Tout(what)                {};
function Topen(what)        {};
function Tclose()                        {};
function Tset()                                {};

if (navigator.userAgent.lastIndexOf('MSIE') != -1 && parseInt(navigator.appVersion) >= 4) {
        var Tover  = OKover;
        var Tout   = OKout;
        var Tclose = IEclose;
        var Topen  = IEopen;
        var Tset   = IEset;
}else if (navigator.appName.indexOf('etscape') != -1 && parseInt(navigator.appVersion) >= 4){
        var Tover  = OKover;
        var Tout   = OKout;
        var Tclose = NSclose;
        var Topen  = NSopen;
        var Tset   = NSset;
};

// Funktionen

function OKover(what)                {clearTimeout(closetab); if(activetab!=what)Tclose(); Topen(what);};
function OKout(what)                {closetab=setTimeout("Tclose()",200);};

function init(){
        if (document.images && (document.layer || document.all)){
                for (cnt=0; cnt < sections.length; cnt++){
                        pl[cnt]     = new Image();
                        pl[cnt].src = 'bilder/swapimg/' + sections[cnt] + '.gif';
                };
        };
};

function swapI(name,src){if((document.images)&&(document[name])&&(pl)){for(var cnt=0;cnt<pl.length;cnt++)if(pl[cnt].src.indexOf(src)!=-1){document[name].src=pl[cnt].src;break;};};};
function swapTo(what)                {swapI('swapper','bilder/swapimg/'+what+'.gif');};
function swapBack()                        {swapI('swapper','bilder/swapimg/'+std_img+'.gif');};

// IE Funktionen

function IEopen(what)                {Tset(what);swapTo(what);activetab=what;if(document.all[what])document.all[what].style.visibility='visible';};
function IEclose()                        {if(activetab && document.all[activetab]){document.all[activetab].style.visibility='hidden';};swapBack();activetab=null;};
function IEset(what)                {if(document.all[what])document.all[what].style.left=document.all['a_'+what].offsetLeft+121;};

// NS Funktionen

function NSopen(what)                {Tset(what);swapTo(what);activetab=what;if(document.layers[what])document.layers[what].visibility='show';};
function NSclose()                        {if(activetab && document.layers[activetab]){document.layers[activetab].visibility='hide';};swapBack();activetab=null;};
function NSset(what)                {if(document.layers[what])document.layers[what].left=document.layers['a_'+what].pageX-9;};