//トップメニュー
function onsenRollover() {
	document.getElementById("btonsen").onmouseover = function() {
		document.getElementById("btonsen").setAttribute("src", "./images/bt_onsen_over.png");
	}
	document.getElementById("btonsen").onmouseout = function() {
		document.getElementById("btonsen").setAttribute("src", "./images/bt_onsen.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", onsenRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", onsenRollover);
}

function stayRollover() {
	document.getElementById("btstay").onmouseover = function() {
		document.getElementById("btstay").setAttribute("src", "./images/bt_stay_over.png");
	}
	document.getElementById("btstay").onmouseout = function() {
		document.getElementById("btstay").setAttribute("src", "./images/bt_stay.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", stayRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", stayRollover);
}

function roomRollover() {
	document.getElementById("btroom").onmouseover = function() {
		document.getElementById("btroom").setAttribute("src", "./images/bt_room_over.png");
	}
	document.getElementById("btroom").onmouseout = function() {
		document.getElementById("btroom").setAttribute("src", "./images/bt_room.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", roomRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", roomRollover);
}

function banquetRollover() {
	document.getElementById("btbanquet").onmouseover = function() {
		document.getElementById("btbanquet").setAttribute("src", "./images/bt_banquet_over.png");
	}
	document.getElementById("btbanquet").onmouseout = function() {
		document.getElementById("btbanquet").setAttribute("src", "./images/bt_banquet.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", banquetRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", banquetRollover);
}

function cuisineRollover() {
	document.getElementById("btcuisine").onmouseover = function() {
		document.getElementById("btcuisine").setAttribute("src", "./images/bt_cuisine_over.png");
	}
	document.getElementById("btcuisine").onmouseout = function() {
		document.getElementById("btcuisine").setAttribute("src", "./images/bt_cuisine.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", cuisineRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", cuisineRollover);
}

function institutionRollover() {
	document.getElementById("btinstitution").onmouseover = function() {
		document.getElementById("btinstitution").setAttribute("src", "./images/bt_institution_over.png");
	}
	document.getElementById("btinstitution").onmouseout = function() {
		document.getElementById("btinstitution").setAttribute("src", "./images/bt_institution.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", institutionRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", institutionRollover);
}

function weddingRollover() {
	document.getElementById("btwedding").onmouseover = function() {
		document.getElementById("btwedding").setAttribute("src", "./images/bt_wedding_over.png");
	}
	document.getElementById("btwedding").onmouseout = function() {
		document.getElementById("btwedding").setAttribute("src", "./images/bt_wedding.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", weddingRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", weddingRollover);
}

function accessRollover() {
	document.getElementById("btaccess").onmouseover = function() {
		document.getElementById("btaccess").setAttribute("src", "./images/bt_access_over.png");
	}
	document.getElementById("btaccess").onmouseout = function() {
		document.getElementById("btaccess").setAttribute("src", "./images/bt_access.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", accessRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", accessRollover);
}

function contactRollover() {
	document.getElementById("btcontact").onmouseover = function() {
		document.getElementById("btcontact").setAttribute("src", "./images/bt_contact_over.png");
	}
	document.getElementById("btcontact").onmouseout = function() {
		document.getElementById("btcontact").setAttribute("src", "./images/bt_contact.png");
	}
}

if(window.addEventListener) {
	window.addEventListener("load", contactRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", contactRollover);
}