(function () {
	var main = [
		'activity',
		'company',
		'products'
	];
	
	var sub = [
		'message',
		'mission',
		'business',
		'responsibility',
		'human_resources',
		'danone_waters',
		'danone_japan',
		'recruit'
	];

	var url        = location.href;
	var a          = url.split('/');
	var navi       = document.getElementById('navi');
	
	
	if(a[5] == '' || a[5] == 'index.html'){
		mainNavi();
	}else{
		subNavi();
	}
	
	function mainNavi(){
		var currentNum;
		var elm = navi.getElementsByTagName('h2');
		
		for (var i=0; i<main.length; i++){
			if (a[4] == main[i]){
				currentNum = i;
			}
		}
		
		if(currentNum != undefined){
			elm[currentNum].className = main[currentNum] + '_active';
		}
	}
	
	function subNavi(){
		var currentNum;
		var elm = navi.getElementsByTagName('li');
		
		for (var i=0; i<sub.length; i++){
			if (a[5] == sub[i]){
				currentNum = i;
			}
		}
		
		if(currentNum != undefined){
			elm[currentNum].className = sub[currentNum] + '_active';
		}
	}
	
})();