function hoverlink(imgid) {
	var el = document.getElementById("img_" + imgid);
	if (el) {
		el.src = "/images/yb/" + imgid + "-2-ja.gif";
	}
}

function normallink(imgid) {
	var el = document.getElementById("img_" + imgid);
	if (el) {
		el.src = "/images/yb/" + imgid + "-ja.gif";
	}
}

function langhl(langid) {
	var el = document.getElementById("lang_" + langid);
	if (el) {
		el.src = "/images/yb/lang-" + langid + "-2.gif";
	}
}

function langnorm(langid) {
	var el = document.getElementById("lang_" + langid);
	if (el) {
		el.src = "/images/yb/lang-" + langid + ".gif";
	}
}


var pagemapclosereq = 0;
var pagemapvisible = 0;

function showpagemap() {
	if (pagemapvisible == 1)
		return;
	var frame = document.getElementById("pagemapwin");
	
	
	if (frame != null) {
		if (frame.getElementsByTagName("body").length == 0) {
			var body = document.createElement("body");
			body.setAttribute("style", "background-color: #ffffff;");
			frame.appendChild(body);
		}
		pagemapvisible = 1;
		
		
		frame.src = '/ja/pagemapwin.html';
		frame.width = '300';
		frame.height = '450';
		frame.marginWidth = '0';
		frame.marginHeight = '0';
		frame.scrolling = 'no';
		frame.style.position = 'absolute';
		frame.style.border = '0px';

		frame.style.left='450px';
		frame.style.top='50px';
		frame.style.zIndex = '100';
		frame.style.display = 'block';
	}
}

function hidepagemapcmd () {
	if (pagemapvisible == 0)
		return;
	if (pagemapclosereq == 1) {
		var frame = document.getElementById("pagemapwin");
		if (frame != null) {
			frame.style.display = 'none';
			// frame.style.visibility = 'hidden';
			
			
		}
		pagemapclosereq = 0;
		pagemapvisible = 0;
	}
}

function hidepagemap () {
	if (pagemapvisible == 0)
		return;
	
	pagemapclosereq = 1;
	window.setTimeout("hidepagemapcmd();", 800);
}

function keeppagemap() {
	if (pagemapvisible == 0)
		return;
	
	pagemapclosereq = 0;
}