/* datei: script.js */

var adr = window.location.href;
var pref = "./img/";
if (adr.indexOf("/tri/") >= 0 || adr.indexOf("/trz/") >= 0 || adr.indexOf("/nl/") >= 0) 
  { pref = "../img/"; }

/* zuerst benutzte Bilder erstellen, damit sie am Angfang gleich geladen werden */
menbckpas = new Image();
menbckpas.src = pref+"menbl1.gif";    
menbckfoc = new Image();
menbckfoc.src = pref+"menor.gif";    

menbckpas2 = new Image();
menbckpas2.src = pref+"menbl2.gif";    
menbckfoc2 = new Image();
menbckfoc2.src = pref+"menor2.gif";    

menimgfoc_ovr = new Image();
menimgfoc_ovr.src = pref+"pfeil_w.gif";    
menimgfoc2_ovr = new Image();
menimgfoc2_ovr.src = pref+"pfeil2_w.gif";    

menimgfoc_out = new Image();
menimgfoc_out.src = pref+"pfeil_b.gif";    
menimgfoc2_out = new Image();
menimgfoc2_out.src = pref+"pfeil2_b.gif";    

menimgpas = new Image();
menimgpas.src = pref+"transp.gif";    
menimgpas2_ovr = new Image();
menimgpas2_ovr.src = pref+"raute2_w.gif";    
menimgpas2_out = new Image();
menimgpas2_out.src = pref+"raute2_b.gif";    

upimgpas = new Image();
upimgpas.src = pref+"up_pas.gif";    
upimgovr = new Image();
upimgovr.src = pref+"up_ovr.gif";    
nextimgpas = new Image();
nextimgpas.src = pref+"next_pas.gif";    
nextimgovr = new Image();
nextimgovr.src = pref+"next_ovr.gif";    
previmgpas = new Image();
previmgpas.src = pref+"prev_pas.gif";    
previmgovr = new Image();
previmgovr.src = pref+"prev_ovr.gif";    


function clck(obj) 
{
  window.location.href=obj.lastChild.href; 
}

function tdovr(obj)
{
  switch(obj.className) 
  {
    case "pasout1": obj.className="pasovr1"; obj.firstChild.src=menimgpas.src; obj.lastChild.className="menovr1"; window.status=obj.lastChild.href; break;
    case "pasout2": obj.className="pasovr2"; obj.firstChild.src=menimgpas2_ovr.src; obj.lastChild.className="menovr2"; window.status=obj.lastChild.href; break;
    case "focout1": obj.className="focovr1"; obj.firstChild.src=menimgfoc_ovr.src; break;
	case "focout2": obj.className="focovr2"; obj.firstChild.src=menimgfoc2_ovr.src; break;
  }   
}

function tdout(obj)
{
  switch(obj.className) 
  {
    case "pasovr1": obj.className="pasout1"; obj.firstChild.src=menimgpas.src; obj.lastChild.className="menpas1"; break;
	case "pasovr2": obj.className="pasout2"; obj.firstChild.src=menimgpas2_out.src; obj.lastChild.className="menpas2"; break;
    case "focovr1": obj.className="focout1"; obj.firstChild.src=menimgfoc_out.src; break;
	case "focovr2": obj.className="focout2"; obj.firstChild.src=menimgfoc2_out.src; break;
  }
  window.status="";
}

function aovr(obj)
{
  /*alert(obj.firstChild.src); test*/
  switch(obj.firstChild.src.substring(obj.firstChild.src.lastIndexOf("/")+1,obj.firstChild.src.length)) 
  {
    case "up_pas.gif": obj.firstChild.src=upimgovr.src; break;
    case "next_pas.gif": obj.firstChild.src=nextimgovr.src; break;
    case "prev_pas.gif": obj.firstChild.src=previmgovr.src; break;
  } 
}

function aout(obj)
{
  switch(obj.firstChild.src.substring(obj.firstChild.src.lastIndexOf("/")+1,obj.firstChild.src.length)) 
  {
    case "up_ovr.gif": obj.firstChild.src=upimgpas.src; break;
    case "next_ovr.gif": obj.firstChild.src=nextimgpas.src; break;
    case "prev_ovr.gif": obj.firstChild.src=previmgpas.src; break;
  }
}