function next() {
	if(document.getElementById('main').style.visibility == 'visible'){
	document.getElementById('nav01').src = 'style/navi/03.jpg';
	document.getElementById('nav02').src = 'style/navi/06.jpg';
	document.getElementById('nav03').src = 'style/navi/_-03.jpg';
	document.getElementById('main').style.visibility = 'hidden';
	document.getElementById('clan').style.visibility = 'hidden';
	document.getElementById('comm').style.visibility = 'visible';}
	else if(document.getElementById('clan').style.visibility == 'visible'){
	document.getElementById('nav01').src = 'style/navi/_.jpg';
	document.getElementById('nav02').src = 'style/navi/06.jpg';
	document.getElementById('nav03').src = 'style/navi/10.jpg';
	document.getElementById('main').style.visibility = 'visible';
	document.getElementById('clan').style.visibility = 'hidden';
	document.getElementById('comm').style.visibility = 'hidden';}
	else{
	document.getElementById('nav01').src = 'style/navi/03.jpg';
	document.getElementById('nav02').src = 'style/navi/_-02.jpg';
	document.getElementById('nav03').src = 'style/navi/10.jpg';
	document.getElementById('main').style.visibility = 'hidden';
	document.getElementById('clan').style.visibility = 'visible';
	document.getElementById('comm').style.visibility = 'hidden';}
return
}

function prev() {
	if (document.getElementById('main').style.visibility == 'visible') {
	document.getElementById('nav01').src = 'style/navi/03.jpg';
	document.getElementById('nav02').src = 'style/navi/_-02.jpg';
	document.getElementById('nav03').src = 'style/navi/10.jpg';
	document.getElementById('main').style.visibility = 'hidden';
	document.getElementById('clan').style.visibility = 'visible';
	document.getElementById('comm').style.visibility = 'hidden';
	}
	else if (document.getElementById('clan').style.visibility == 'visible') {
	document.getElementById('nav01').src = 'style/navi/03.jpg';
	document.getElementById('nav02').src = 'style/navi/06.jpg';
	document.getElementById('nav03').src = 'style/navi/_-03.jpg';
	document.getElementById('main').style.visibility = 'hidden';
	document.getElementById('clan').style.visibility = 'hidden';
	document.getElementById('comm').style.visibility = 'visible';
	}
	else {
	document.getElementById('nav01').src = 'style/navi/_.jpg';
	document.getElementById('nav02').src = 'style/navi/06.jpg';
	document.getElementById('nav03').src = 'style/navi/10.jpg';
	document.getElementById('main').style.visibility = 'visible';
	document.getElementById('clan').style.visibility = 'hidden';
	document.getElementById('comm').style.visibility = 'hidden';
	}
return
}