function meOnLoad(){
	hidesub(document.getElementById('navi').firstChild.firstChild,'next');
	hidesub(document.getElementById('navi').firstChild.lastChild,'prev');
}
function hidesub(elementLi,direction){
	if(elementLi){
		if(direction=='prev'){
			curnode=elementLi.previousSibling; 	
		}else{
			curnode=elementLi.nextSibling; 	
		}
		while(curnode){
			for(x=0;x<curnode.childNodes.length;x++){
				aktnode=curnode.childNodes[x];
				if(aktnode.nodeName=='UL'){
					aktnode.style.display='none';
				}
			}
			if(direction=='prev'){
				curnode=curnode.previousSibling; 	
			}else{
				curnode=curnode.nextSibling; 	
			}
		}
	}
}
function showsub(elementLi){
		hidesub(elementLi,'prev');
		hidesub(elementLi,'next');
		for(x=0;x<elementLi.childNodes.length;x++){
			aktnode=elementLi.childNodes[x];
			if(aktnode.nodeName=='UL')aktnode.style.display='block';
		}
}