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, isSpecial) {    
     //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 url_array = url_string.split("/");
     
     if(url_array.length == 3 && url_array[1] != "musicals") {
         var url_string = url_array[2];
     }else {
         var url_string = "not-defined";
     }
     var url_string = url_string.toLowerCase();
             //alert("URL-String-Output: "+url_string);                  
        
     if(isSpecial == "leer"){
			 //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 IE
	         if(link_array.length == 5) {
	             var link_string = link_array[4];    
	         }
	                         
	         //für alle anderen browser                                 
	         else if(link_array.length == 3) {
	             var link_string = link_array[2];
	         }else {
	             var link_string = "not-defined";
	         }
	         var link_string = link_string.toLowerCase();
	             //alert("Link-String-Output: "+link_string);   
    }else{
				var link_string = isSpecial;
				link_string = link_string.toLowerCase();
		}  
		 
		 //Ergebnis vergleichen und auswerten
		 if(url_string == link_string) {  
         changeClass(produktion); 
     }
}