function subNavi(naviID,flg){
	document.getElementById(naviID).style.display=(flg=="show") ? "block" : "none";
}

function offsetOverlay(){
	moveToOverlay('subNavi01',getPageCenter(750)+110,261);
	moveToOverlay('subNavi02',getPageCenter(750)+221,261);
	moveToOverlay('subNavi03',getPageCenter(750)+332,261);
	moveToOverlay('subNavi04',getPageCenter(750)+442,261);
	moveToOverlay('subNavi05',getPageCenter(750)+554,261);
}