navId = 0;
				saveNavId=0;
				overnaviMain = 0;
				function openNavi(id,level,saveNavi) {
					
					if(document.getElementById('submenu'+id) ) {
						
							if(saveNavId>1 ) { document.getElementById('submenu'+saveNavId).style.display='none'; }
							document.getElementById('submenu'+id).style.display='block';
						
					}
					if(level==1 && saveNavi!=true) {
						if(navId!=0 && document.getElementById('submenu'+navId).style.display == "block" ) {
							/*document.getElementById('submenu'+navId).style.display == "none"	*/
						} 
					}	
					
					
					document.getElementById('submenu1').style.display='none';
							
					
					
					if(saveNavi=='loeschen' && level==1)
					{
						if(id!=navId && navId!=0) { 
							document.getElementById('submenu'+navId).style.display='none';
							
						}
								
					}	
					
					if(saveNavi==true)
					{
						navId=id;
						saveNavId=id;
						
					} else {
						if(id!=navId && navId!=0) { 
							document.getElementById('submenu'+navId).style.display='none';
						}
						
					}
					if(level==1 && navId!=0) {
						navId=id;
					}			
					
				}
				
				function closeNavi(id) {
					
					if(navId==0 )
					{		
							
						document.getElementById('submenu'+id).style.display='none';	
							
					} 
						
					if(document.getElementById('submenu1').style.display=='none')	
					{
						
						if(document.getElementById('submenu'+navId))
						{
							document.getElementById('submenu'+navId).style.display='none';	
						}
						document.getElementById('submenu1').style.display='block';	
					} else 	if(saveNavId!=0) {
						
						document.getElementById('submenu'+navId).style.display='none';	
						document.getElementById('submenu'+saveNavId).style.display='block';	
					} 
					
					
				}

function detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}

function detectFF() {
	var userAgent = navigator.userAgent.toLowerCase();
  	if (userAgent.indexOf('firefox')!=-1) {
  	  return true;
  	} else {
		return false;
	}
}