/* global */
var cookie = readCookie("style");
var title = (!cookie || cookie != 'small' && cookie != 'large') ? 'default' : cookie;
setActiveStyleSheet(title);
var scroll_sp = 6;
var scroll_timer = 0;
var rollover_images = [];
var gnavi_flag = false;/* styleswitcher */
function setActiveStyleSheet(title) {
	var i, a, main;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("style") != -1
			&& a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
	createCookie("style", title, 30);
}function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("style") != -1 
			&& a.getAttribute("title") && !a.disabled
			) return a.getAttribute("title");
	}
	return null;
}function getPreferredStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("style") != -1
			 && a.getAttribute("rel").indexOf("alt") == -1
			 && a.getAttribute("title")
			 ) return a.getAttribute("title");
	}
	return null;
}function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}function loadStyle() {
	var cookie = readCookie("style");
	var title = (!cookie || cookie != 'small' && cookie != 'large') ? 'default' : cookie;
	setActiveStyleSheet(title);

	var aSmall = document.getElementById('small')
	var aDefault = document.getElementById('default')
	var aLarge = document.getElementById('large')

	if (aSmall && aDefault && aLarge) {
		aSmall.onclick = function() {
			setActiveStyleSheet('small');
			return false;
		}
		aDefault.onclick = function() {
			setActiveStyleSheet('default');
			return false;
		}
		aLarge.onclick = function() {
			setActiveStyleSheet('large');
			return false;
		}
	}
}

/* print */
function printPage() {
	print();
	return false;
}
/* current */
function loadRollover() {
}
function loadLnavi() {
	var lnaviElem = document.getElementById('side-navi');
	if (lnaviElem) var aElem = lnaviElem.getElementsByTagName('a');

	if (lnaviElem && aElem) {
		for (var i=0, len=aElem.length; i<len; i++) {
			var aHref = aElem[i].getAttribute('href');
			var lHref = location.href;
			if (aHref.match(/\/$/)) {
				aHref = aHref + 'index.html';
			}
			if (lHref.match(/\/$/)) {
				lHref = lHref + 'index.html';
			}
			if (lHref.match(aHref)) {
				if (aElem[i].className != ''){
					aElem[i].className = aElem[i].className + ' current';
				}else{
					aElem[i].className = 'current';
				}
			}	
		}
	}
}

window.onload = function() {
	/* rollover */
	loadRollover();

	/* styleswitcher */
	loadStyle();

	/* print */
	var printElem = document.getElementById('print');
	if (printElem) {
		printElem.onclick = printPage;
	}

	/* local */
	loadLnavi();

	/* global */
	loadGnavi();
}