/* css change
----------------------------------------------- */
function changeStyleseet(n) {
	var links = document.getElementsByTagName("link");
	for (i = 0; i <= 2; i++) {
		links.item(i).disabled = true;
		document.getElementById("fontSize" + i).src = "http://shiroi.kbm.cc/common/b_font_" + i + ".gif";
	}
	links.item(eval(n)).disabled = false;
	document.getElementById("fontSize" + eval(n)).src = "http://shiroi.kbm.cc/common/b_font_" + eval(n) + "_on.gif";
	setCookie("style",eval(n));
}

/*
window.onload = function(e) {
	var style = getCookie("style");
	if (style == "") { style = 1; }
	document.getElementById("fontSize" + style).src = "http://shiroi.kbm.cc/common/b_font_" + style + "_on.gif";
	changeStyleseet(style);
}
*/

function styleCheck() {
	var style = getCookie("style");
	if (style == "") { style = 1; }
	document.getElementById("fontSize" + style).src = "http://shiroi.kbm.cc/common/b_font_" + style + "_on.gif";
	changeStyleseet(style);
}


/* mouse over
----------------------------------------------- */
function fontSizeOver(n) {
	var style = getCookie("style");
	if (style != eval(n)) {
		document.getElementById("fontSize" + eval(n)).src = "http://shiroi.kbm.cc/common/b_font_" + eval(n) + "_ov.gif";
	}
}
function fontSizeOut(n) {
	var style = getCookie("style");
	if (style != eval(n)) {
		document.getElementById("fontSize" + eval(n)).src = "http://shiroi.kbm.cc/common/b_font_" + eval(n) + ".gif";
	}
}


/* page up
----------------------------------------------- */
function pageup() {
	if (document.all) { posi = document.body.scrollTop; }
	else { posi = window.pageYOffset; }
	moveObje(posi);
}
function moveObje(position) {
	move = position / 10;
	point = parseInt(position - move);
	scrollTo(0,point);
	if (point > 0) { setTimeout("moveObje(point)",1); }
}


/* Cookie
----------------------------------------------- */
function getCookie(key,  tmp1, tmp2, xx1, xx2, xx3) {
	tmp1 = " " + document.cookie + ";";
	xx1 = xx2 = 0;
	len = tmp1.length;
	while (xx1 < len) {
		xx2 = tmp1.indexOf(";", xx1);
		tmp2 = tmp1.substring(xx1 + 1, xx2);
		xx3 = tmp2.indexOf("=");
		if (tmp2.substring(0, xx3) == key) { return(unescape(tmp2.substring(xx3 + 1, xx2 - xx1 - 1))); }
		xx1 = xx2 + 1;
	}
	return("");
}
function setCookie(key, val, tmp) {
	tmp = key + "=" + escape(val) + "; ";
	tmp += "domain=shiroi.kbm.cc; ";
	tmp += "path=/; ";
	tmp += "expires=Fri, 31-Dec-2030 23:59:59; ";
	document.cookie = tmp;
}
function clearCookie(key) { document.cookie = key + "=" + "xx; expires=1-Jan-1997 00:00:00;"; }