// JavaScript Document

/* for contents menu ------------------------------------------------------*/

function MenuOn(eid) {
   obj=document.getElementById(eid).style.visibility = 'visible';
}
function MenuOff(eid) {
   obj=document.getElementById(eid).style.visibility = 'hidden';
}

/* for stylesheet change ------------------------------------------------------*/

function setActiveStyleSheet(title) {
	var i, a, main;
	if ( title == '' || title == null ) {
		title = 'standard';
	}
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}
}
function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(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").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;
}

/* for fontsize change --------------------------------------------------------*/

function change_size( ratio ) {
	if ( 40 < parseInt( def_size ) && parseInt( ratio ) < 0 ) {
		def_size = parseInt( def_size ) + parseInt( ratio );
	}
	if ( 0 < parseInt( ratio ) && parseInt( def_size ) < 250 ) {
		def_size = parseInt( def_size ) + parseInt( ratio );
	}
	document.body.style.fontSize = def_size + '%';
}

/* for event ------------------------------------------------------------------*/

var cookie;
var title;
var currentYear;
var currentMonth;
var currentDay;
var def_size;
var ratio;
window.onload = function(e) {
	cookie   = readCookie("fontSize");
	def_size = cookie ? cookie : 100;
	change_size ( 0 );
	cookie    = readCookie("style");
	title = cookie ? cookie : 'standard';
	setActiveStyleSheet(title);
	bannerAd(); // 2009-02-23
	// putCalendar (); // 2009-02-23 off
}
window.onunload = function(e) {
	title = getActiveStyleSheet();
	createCookie("style", title, 365);
	createCookie("fontSize", def_size, 365);
}

/* for swapimg ----------------------------------------------------------------*/

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

/* for banner ad ----------------------------------------------------------------*/

banner_data = "";
document.write("<script type='text/JavaScript' src='script/banner/banner.js'></script>");
document.write("<script type='text/JavaScript' src='script/banner/"+getAdYm()+"/list.js'></script>");
function getAdYm(){
    var d = new Date();
    var y = d.getYear();
	var m = d.getMonth() + 1;
    y = "" + y;
    if(y.length==2) y = "19" + y;
    if(y.length==3) y = "20" + y.substr(1,2);
	if(m < 10) m = "0" + m;
	return y + "/" + m;
}