var act = 'nil';

function aCont(n,m,k) {

//alert('onoff '+n+'  '+m);


    divelWelcome = top.document.getElementById('welcome');
    divelclassca = top.document.getElementById('classca');	
    divelclasscaTXT = top.document.getElementById('classcaTXT');
    divelservall = top.document.getElementById('servall');
    divelservallTXT = top.document.getElementById('servallTXT');
    divelacontent = top.document.getElementById('acontent');	
	divelnavserv = top.document.getElementById('navserv');	
	divelnavclass = top.document.getElementById('navclass');
	divelnavmain = top.document.getElementById('navmain');		
				
				
	if (n == 'start') {
	  act = 'nil';			
	  divelacontent.style.visibility="hidden";
	  divelWelcome.style.visibility="visible";
	  divelclassca.style.visibility="visible";
	  divelclasscaTXT.style.visibility="visible";
	  divelservall.style.visibility="visible";
	  divelservallTXT.style.visibility="visible";
	  divelnavserv.style.visibility="hidden";
	  divelnavclass.style.visibility="hidden";
	  divelnavmain.style.visibility="visible";
	}
	
	if (n == 'kontakt') {
	  act = 'nil';			
	  divelacontent.style.visibility="visible";
	  divelWelcome.style.visibility="hidden";
	  divelclassca.style.visibility="hidden";
	  divelclasscaTXT.style.visibility="hidden";
	  divelservall.style.visibility="hidden";
	  divelservallTXT.style.visibility="hidden";
	  
	  top.pagecontainer.location.replace("pages/kontakt.html");
//	  top.pagecontainer.location.href = "pages/kontakt.html";
	  
	}

	if (n == 'classic') {			
	  if (m == 'in') {
	  
	   // alert('onoff '+n+'  '+m);
	  
        divelnavclass.style.visibility="visible";
		divelnavserv.style.visibility="hidden";		
	  }
	
	  if (m == 'out') {
	    if (act != 'class') {
          divelnavclass.style.visibility="hidden";
		}
		divelnavserv.style.visibility="hidden";		
	  }
	  if (m == 'clk') {
	  
//	    top.pagecontainer.location.replace("pages/classmain.html");
//		top.pagecontainer.location.href = "pages/classmain.html";	  
	  
//	    alert('onoff '+n+'  '+m);
	  
	    act = 'class';
        divelnavclass.style.visibility="visible";
		divelnavserv.style.visibility="hidden";
		divelnavmain.style.visibility="hidden";	  
	    divelacontent.style.visibility="visible";
	    divelWelcome.style.visibility="hidden";
	    divelclassca.style.visibility="hidden";
	    divelclasscaTXT.style.visibility="hidden";
	    divelservall.style.visibility="hidden";
	    divelservallTXT.style.visibility="hidden";

top.pagecontainer.location.replace("pages/classmain.html");	  
	  
	  }  
	}

	if (n == 'service') {			
	  if (m == 'in') {
	  
	    
	  
        divelnavserv.style.visibility="visible";
		divelnavclass.style.visibility="hidden";
	  }
	
	  if (m == 'out') {
	    if (act != 'service') {  
          divelnavserv.style.visibility="hidden";
		}  
		divelnavclass.style.visibility="hidden";
	  }
	  
	  if (m == 'clk') {
	  
//	    alert('onoff '+n+'  '+m);
	  
	    act = 'service';
        divelnavclass.style.visibility="hidden";
		divelnavserv.style.visibility="visible";
		divelnavmain.style.visibility="hidden";	  
	    divelacontent.style.visibility="visible";
	    divelWelcome.style.visibility="hidden";
	    divelclassca.style.visibility="hidden";
	    divelclasscaTXT.style.visibility="hidden";
	    divelservall.style.visibility="hidden";
	    divelservallTXT.style.visibility="hidden";

		if (k == 1) {	  
	      top.pagecontainer.location.replace("pages/servmain.html");
		}  
		
//	    alert('onoff '+n+'  '+m);		
		
//		return true;
			  
	  }	  
	  
	  
	  
	    
	}	
	
	if (n == 'main') {			

	  if (m == 'in') {
	  	  
        divelnavserv.style.visibility="visible";
		divelnavclass.style.visibility="hidden";
	  }
	
	  if (m == 'out') {
	    if (act != 'service') {  
          divelnavserv.style.visibility="hidden";
		}  
		divelnavclass.style.visibility="hidden";
	  }
	  
	  if (m == 'clk') {
	  
//	    alert('onoff '+n+'  '+m+'  '+k);
	  
	    act = 'main';
        divelnavclass.style.visibility="hidden";
		divelnavserv.style.visibility="hidden";
		divelnavmain.style.visibility="visible";	  
	    divelacontent.style.visibility="visible";
	    divelWelcome.style.visibility="hidden";
	    divelclassca.style.visibility="hidden";
	    divelclasscaTXT.style.visibility="hidden";
	    divelservall.style.visibility="hidden";
	    divelservallTXT.style.visibility="hidden";

		if (k == 1) {	  
	      top.pagecontainer.location.replace("pages/firma.html");
		}  
		
		if (k == 2) {	  
	      top.pagecontainer.location.replace("pages/lageplan.html");
		}		
		
		if (k == 3) {		
		  top.pagecontainer.location.replace("pages/contactfrm.html");
		}  
		
			  
	  }	  
	  
	  
	  
	    
	}	
	
	
	
	
//    document.getElementById("fest").style.visibility = "hidden";	
//    document.getElementById("Zeile").style.visibility = "collapse";
}