/**********************************************************
* onload */

window.onload = function() {
	browserCheck(); //browserCheck
	initOvers(); //rollover
}

window.onunload = function() {
}




/**********************************************************
* rollover */

function initOvers() {
	initRollovers('container');
}

function initRollovers(idName) {
	if(document.getElementsByTagName) {
	
		var aPreLoad = new Array();
		var sTempSrc;
		var aImages = document.getElementById(idName).getElementsByTagName('img');

		for (var i = 0; i < aImages.length; i++) {
			if (aImages[i].className == 'rollover') {
				var src = aImages[i].getAttribute('src');
				if (src.indexOf('_over') == -1) {
					var ftype = src.substring(src.lastIndexOf('.'), src.length);
					var hsrc = src.replace(ftype, '_over'+ftype);

					aImages[i].setAttribute('hsrc', hsrc);
					
					aPreLoad[i] = new Image();
					aPreLoad[i].src = hsrc;
					
					aImages[i].onmouseover = function() {
						sTempSrc = this.getAttribute('src');
						this.setAttribute('src', this.getAttribute('hsrc'));
					}	
					
					aImages[i].onmouseout = function() {
						if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_over'+ftype, ftype);
						this.setAttribute('src', sTempSrc);
					}
				}
			}
		}

	}
}




/**********************************************************
* FontChange */

var ckName = "fchan",ckDays = 1;
var fontS,fsCK = GetCookie(ckName);
var sizing = new Array('11px','13px','15px','17px','19px','21px','23px');

// browserCheck
function browserCheck() {
	if ( fsCK != null ) {
		fontS = eval(fsCK);
	} else {
		fontS = 1;
	}
	document.getElementsByTagName('body')[0].style.fontSize = sizing[fontS];
}

// FontChange
function FontChange(tarF) {
	if(tarF != 0) {
		fontS += tarF;
		if (fontS < 0) fontS = 0;
		if (fontS > 6) fontS = 6;
		SetCookie(ckName,fontS);
	} else {
		fontS = 1;
		SetCookie(ckName,fontS);
	}
	document.getElementsByTagName('body')[0].style.fontSize = sizing[fontS];
}

// Set Cookie
function SetCookie(name,value){
	var dobj = new Date();
	dobj.setTime( dobj.getTime() + 24 * 60 * 60 * ckDays * 1000);
	var expiryDate = dobj.toGMTString();
	document.cookie = name + '=' + escape(value)+ ';expires=' + expiryDate + ';path=/';
}

// Get Cookie
function GetCookie(name){
	var arg  = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen){
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
		return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

// getCookieVal
function getCookieVal(offset){
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset,endstr));
}

// DeleteCookie
function DeleteCookie(name){
	if (GetCookie(name)) {
		document.cookie = name + '=' +
		'; expires=Thu, 01-Jan-70 00:00:01 GMT;path=/';
	}
}





/**********************************************************
* MM */

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) { //v4.0
  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 && document.getElementById) x=document.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];}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.subwin = window.open(theURL,winName,features);
  subwin.focus();
}

function MM_popupMsg(msg) { //v1.0
  alert(msg);
}