userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btn_home_over = newImage("css/btn_home-over.gif");
		btn_corporate_profile_over = newImage("css/btn_corporate_profile-over.gif");
		btn_catalog_over = newImage("css/btn_catalog-over.gif");
		btn_recommend_over = newImage("css/btn_recommend-over.gif");
		btn_recruit_over = newImage("css/btn_recruit-over.gif");
		btn_contact_over = newImage("css/btn_contact-over.gif");
		btn_link_over = newImage("css/btn_link-over.gif");

		btn_env_chemicals_over = newImage("css/btn_env_chemicals-over.gif");
		btn_env_chemicals_btn_prevent_over = newImage("css/btn_env_chemicals-btn_preve.gif");
		btn_chemistry_over = newImage("css/btn_chemistry-over.gif");
		btn_chemistry_btn_prevent_over = newImage("css/btn_chemistry-btn_prevent_o.gif");
		btn_prevent_over = newImage("css/btn_prevent-over.gif");
		btn_prevent_btn_env_materials_over = newImage("css/btn_prevent-btn_env_materia.gif");
		btn_env_materials_btn_prevent_over = newImage("css/btn_env_materials-btn_preve.gif");
		btn_env_materials_over = newImage("css/btn_env_materials-over.gif");
		btn_housing_btn_prevent_over = newImage("css/btn_housing-btn_prevent_ove.gif");
		btn_housing_over = newImage("css/btn_housing-over.gif");
		btn_maintenance_btn_prevent_over = newImage("css/btn_maintenance-btn_prevent.gif");
		btn_maintenance_over = newImage("css/btn_maintenance-over.gif");
		preloadFlag = true;
	}
}


strNav =
'<div id="nav">'+
'<p><a href="http://www.fujishoukai.co.jp/index.html" onmouseover="changeImages(\'btn_home\', \'../css/btn_home-over.gif\'); return true;" onmouseout="changeImages(\'btn_home\', \'../css/btn_home.gif\'); return true;"><img src="../css/btn_home.gif" alt="ホーム" width="103" height="21" name="btn_home" /></a>'+
'<a href="http://www.fujishoukai.co.jp/corporate_profile/index.html" onmouseover="changeImages(\'btn_corporate_profile\', \'../css/btn_corporate_profile-over.gif\'); return true;" onmouseout="changeImages(\'btn_corporate_profile\', \'../css/btn_corporate_profile.gif\'); return true;"><img src="../css/btn_corporate_profile.gif" alt="会社概要" width="100" height="21" name="btn_corporate_profile" /></a>'+
'<a href="http://www.fujishoukai.co.jp/catalog/index.html" onmouseover="changeImages(\'btn_catalog\', \'../css/btn_catalog-over.gif\'); return true;" onmouseout="changeImages(\'btn_catalog\', \'../css/btn_catalog.gif\'); return true;"><img src="../css/btn_catalog.gif" alt="取扱製品" width="100" height="21" name="btn_catalog" /></a>'+
'<a href="http://www.fujishoukai.co.jp/catalog/recommend.html" onmouseover="changeImages(\'btn_recommend\', \'../css/btn_recommend-over.gif\'); return true;" onmouseout="changeImages(\'btn_recommend\', \'../css/btn_recommend.gif\'); return true;"><img src="../css/btn_recommend.gif" alt="おすすめ製品" width="100" height="21" name="btn_recommend" /></a>'+
'<a href="http://www.fujishoukai.co.jp/recruit/index.html" onmouseover="changeImages(\'btn_recruit\', \'../css/btn_recruit-over.gif\'); return true;" onmouseout="changeImages(\'btn_recruit\', \'../css/btn_recruit.gif\'); return true;"><img src="../css/btn_recruit.gif" alt="採用情報" width="100" height="21" name="btn_recruit" /></a>'+
'<a href="http://www.fujishoukai.co.jp/contact/index.html" onmouseover="changeImages(\'btn_contact\', \'../css/btn_contact-over.gif\'); return true;" onmouseout="changeImages(\'btn_contact\', \'../css/btn_contact.gif\'); return true;"><img src="../css/btn_contact.gif" alt="お問合せ" width="100" height="21" name="btn_contact" /></a>'+
'<a href="http://www.fujishoukai.co.jp/link/index.html" onmouseover="changeImages(\'btn_link\', \'../css/btn_link-over.gif\'); return true;" onmouseout="changeImages(\'btn_link\', \'../css/btn_link.gif\'); return true;"><img src="../css/btn_link.gif" alt="リンク" width="100" height="21" name="btn_link" /></a></p>'+
'</div>'+
'';

strMenuCatalog =
'<div id="menu">'+
'<div class="catalog">'+
'<h5><a href="index.html"><img src="img/h_product.gif" width="160" height="28" border="0" alt="取扱商品" /></a></h5>'+
'<p><a href="env_chemicals.html"'+
'	onmouseover="changeImages(\'btn_env_chemicals\', \'img/btn_env_chemicals-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_env_chemicals\', \'img/btn_env_chemicals.gif\'); return true;"><img name="btn_env_chemicals" src="img/btn_env_chemicals.gif" width="160" height="35" border="0" alt="環境保全薬品" /></a>'+
'<a href="chemistry.html"'+
'	onmouseover="changeImages(\'btn_chemistry\', \'img/btn_chemistry-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_chemistry\', \'img/btn_chemistry.gif\'); return true;"><img name="btn_chemistry" src="img/btn_chemistry.gif" width="160" height="35" border="0" alt="化学工業薬品" /></a>'+
'<a href="prevent.html"'+
'	onmouseover="changeImages(\'btn_prevent\', \'img/btn_prevent-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_prevent\', \'img/btn_prevent.gif\'); return true;"><img name="btn_prevent" src="img/btn_prevent.gif" width="160" height="35" border="0" alt="防疫剤・殺虫剤" /></a>'+
'<a href="env_materials.html"'+
'	onmouseover="changeImages(\'btn_env_materials\', \'img/btn_env_materials-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_env_materials\', \'img/btn_env_materials.gif\'); return true;"><img name="btn_env_materials" src="img/btn_env_materials.gif" width="160" height="35" border="0" alt="環境保全資材" /></a>'+
'<a href="housing.html"'+
'	onmouseover="changeImages(\'btn_housing\', \'img/btn_housing-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_housing\', \'img/btn_housing.gif\'); return true;"><img name="btn_housing" src="img/btn_housing.gif" width="160" height="35" border="0" alt="住宅関連機器" /></a>'+
'<a href="maintenance.html"'+
'	onmouseover="changeImages(\'btn_maintenance\', \'img/btn_maintenance-over.gif\'); return true;"'+
'	onmouseout="changeImages(\'btn_maintenance\', \'img/btn_maintenance.gif\'); return true;"><img name="btn_maintenance" src="img/btn_maintenance.gif" width="160" height="35" border="0" alt="メンテナンス清掃部部門" /></a></p>'+
'<img src="img/bg_product_nav.gif" width="160" height="32" alt="" />'+
'</div>'+
'</div>'+
'';