function visibInit() {
	//表示・非表示
//製品情報
	document.getElementById("subpronavi-a").style.display = "none";
	document.getElementById("subpronavi-b").style.display = "none";
	document.getElementById("subpronavi-c").style.display = "none";
	document.getElementById("subpronavi-d").style.display = "none";
	document.getElementById("subpronavi-e").style.display = "none";
	document.getElementById("subpronavi-f").style.display = "none";
	document.getElementById("subpronavi-g").style.display = "none";
	document.getElementById("subpronavi-h").style.display = "none";
	document.getElementById("subpronavi-i").style.display = "none";
	//カテゴリー内であればそれぞれ該当するサブカテゴリーを開く 
//製品情報
	if (document.getElementsByClassName("pattern-a").length == 1) {
		visiblity('subpronavi-a', 'pronavi-a');
	} else if (document.getElementsByClassName("pattern-b").length == 1) {
		visiblity('subpronavi-b', 'pronavi-b');
	} else if (document.getElementsByClassName("pattern-c").length == 1) {
		visiblity('subpronavi-c', 'pronavi-c');
	} else if (document.getElementsByClassName("pattern-d").length == 1) {
		visiblity('subpronavi-d', 'pronavi-d');
	} else if (document.getElementsByClassName("pattern-e").length == 1) {
		visiblity('subpronavi-e', 'pronavi-e');
	} else if (document.getElementsByClassName("pattern-f").length == 1) {
		visiblity('subpronavi-f', 'pronavi-f');
	} else if (document.getElementsByClassName("pattern-g").length == 1) {
		visiblity('subpronavi-g', 'pronavi-g');
	} else if (document.getElementsByClassName("pattern-h").length == 1) {
		visiblity('subpronavi-h', 'pronavi-h');
	} else if (document.getElementsByClassName("pattern-i").length == 1) {
		visiblity('subpronavi-i', 'pronavi-i');
	} 
}
//visiblity実行
function visiblity(visiblId, btnId) {
	//document.allが使えるかどうか
	if (document.all) {
		visiblStyle = document.all(visiblId).style;
		btnTag = document.all(btnId);
	} else {
		visiblStyle = document.getElementById(visiblId).style;
		btnTag = document.getElementById(btnId);
	}
	//メニュー表示・非表示判別
	var className = 'close';
	if (visiblStyle.display == "none") {
		//非表示だった場合実行
		visiblStyle.display = "block";
		className = 'open';
	} else {
		//表示だった場合実行
		visiblStyle.display = "none";
	}
	//idごとの分岐
//製品情報
	if (btnId == "pronavi-a") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"設計・開発・テスト\" href=\"JavaScript:visiblity('subpronavi-a','pronavi-a');\" class=\"" + className + "\">設計・開発・テスト</a>";
	}
	if (btnId == "pronavi-b") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"ERP\" href=\"JavaScript:visiblity('subpronavi-b','pronavi-b');\" class=\"" + className + "\">ERP</a>";
	}
	if (btnId == "pronavi-c") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"GIS\" href=\"JavaScript:visiblity('subpronavi-c','pronavi-c');\" class=\"" + className + "\">GIS</a>";
	}
	if (btnId == "pronavi-d") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"アプリケーション連携・統合\" href=\"JavaScript:visiblity('subpronavi-d','pronavi-d');\" class=\"" + className + "\">アプリケーション連携・統合</a>";
	}
	if (btnId == "pronavi-e") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"運用管理\" href=\"JavaScript:visiblity('subpronavi-e','pronavi-e');\" class=\"" + className + "\">運用管理</a>";
	}
	if (btnId == "pronavi-f") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"ストレージ\" href=\"JavaScript:visiblity('subpronavi-f','pronavi-f');\" class=\"" + className + "\">ストレージ</a>";
	}
	if (btnId == "pronavi-g") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"セキュリティ\" href=\"JavaScript:visiblity('subpronavi-g','pronavi-g');\" class=\"" + className + "\">セキュリティ</a>";
	}
	if (btnId == "pronavi-h") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"組込みシステム\" href=\"JavaScript:visiblity('subpronavi-h','pronavi-h');\" class=\"" + className + "\">組込みシステム</a>";
	}
	if (btnId == "pronavi-i") {
		//ボタン部分HTML変更
		btnTag.innerHTML = "<a title=\"特定業務支援\" href=\"JavaScript:visiblity('subpronavi-i','pronavi-i');\" class=\"" + className + "\">特定業務支援</a>";
	}
}