var dom = document.getElementById;
var iex = document.all;

function changeClass(id) {
        var el = dom ? document.getElementById(id) : iex ? document.all[id] : false;
        el.className = "navi_ebene2_h";
    }    

function urlCheckNavi(produktion) {    
     //Url-Name formatieren 
     var url_string = window.location.href;
             //alert("URL-String-Input: "+url_string);
     var pos_http = 8;
     var url_string = url_string.slice(pos_http, url_string.length);
     var pos_GET = url_string.indexOf("?")
     if (pos_GET > 0) var url_string = url_string.slice(0, pos_GET);
            //alert("URL-String-Input: "+url_string);
     var url_array = url_string.split("/");
     if(url_array.length == 4 || url_array.length == 5) {
         var url_string = url_array[2];
     }else if(url_array.length == 3) {
         var url_string = url_array[1];
     }else {
         var url_string = "not-definited";
     }
     var url_string = url_string.toLowerCase();
            //alert("URL-String-Output: "+url_string);                             
        
     //Link-Name formatieren
     var el = dom ? document.getElementById("link_" + produktion) : iex ? document.all["link_" + produktion] : false;
     var link_string = el.getAttribute("href");
            //alert("Link-String-Input: "+link_string);
     var link_array = link_string.split("/");
     
     //für den s***** IE
     if(link_array.length == 6) {
         var link_string = link_array[4];    
     }else if(link_array.length == 5) {
         var link_string = link_array[3];
     }
                     
     //für alle anderen browser                                 
     else if(link_array.length == 4) {
         var link_string = link_array[2];
     }else if(link_array.length == 3) {
         var link_string = link_array[1];
     }else {
         var link_string = "not-definited";
     }
     var link_string = link_string.toLowerCase(); 
            //alert("Link-String-Output: "+link_string);   
    
     if(url_string == link_string) {  
         changeClass(produktion); 
     }
}