//****************************
//***** 画像フェードイン *****
//****************************
// 画像のフェードイン・フェードアウト
var feedspd = 25; // 変化させる間隔（ミリ秒単位）
var feedntc = 2; // 何%ずつ変化させるか
// フェードインさせる画像のname属性（順番に並べる）
var feedfii;
var feedcnt = 0;
var feedi = 0;
var feedretry = 0;
// フェードイン
function fdInImg(inImg) {

	var wkImgNM = inImg;
	feedfii = inImg.split(",");
	fdInImgExc();
}

function fdInImgExc() {

	try{
		if (!document.images[feedfii[feedi]]){
			feedretry++;
			if (feedretry>10){
				clearTimeout(this.timeout);
				return;
			}else{
				setTimeout('fdInImgExc()',100);
				return;
			}
		}else{
			document.images[feedfii[feedi]].filters['alpha'].opacity = feedcnt;
			feedcnt += feedntc;
			if(feedcnt >= 100) {
				feedcnt = 0;
				feedi++;
			}
			if(feedfii.length <= feedi) return;
			setTimeout('fdInImgExc()',feedspd);
		}
	}catch(e){
		feedretry++;
		setTimeout('fdInImgExc()',100);
	}
}


//********************
//***** 画像差替 *****
//********************
window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);
var d=document;
var imgs = new Array();
var zInterval = null;
var current=0;
var pause=false;		//ループ設定(true or false)
var alphaV=.02;			//切換スピード
var retry = 0;
function so_init() {


	if(!d.getElementById || !d.createElement)return;

	try{
		if (!d.getElementById("feedimageContainer")){
			retry++;
			if (retry>10){
				clearTimeout(this.timeout);
				return;
			}else{
				setTimeout('so_init("feedimageContainer")',100);
				return;
			}
		}
	}catch(e){
		retry++;
		setTimeout('so_init("feedimageContainer")',100);
	}
	clearTimeout(this.timeout);

	// DON'T FORGET TO GRAB THIS FILE AND PLACE IT ON YOUR SERVER IN THE SAME DIRECTORY AS THE JAVASCRIPT!
	// http://slayeroffice.com/code/imageCrossFade/xfade2.css
	//css = d.createElement("link");
	//css.setAttribute("href","xfade2.css");
	//css.setAttribute("rel","stylesheet");
	//css.setAttribute("type","text/css");
	//d.getElementsByTagName("head")[0].appendChild(css);

	imgs = d.getElementById("feedimageContainer").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++){
		if (imgs.length-1==i){
			imgs[i].xOpacity = .99;
			imgs[i].style.display = "block";
		}else{
			imgs[i].xOpacity = 0;
		}
	}
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;

	if (imgs.length>2){
		setTimeout(so_xfade,1000);
	}
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	if (imgs.length-1==nIndex){nIndex=0;}

	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=alphaV; 
	nOpacity+=alphaV;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if(cOpacity<=0) {
		imgs[current].style.display = "none";
		current = nIndex;
		if (imgs.length-1==current && pause==true){
			clearTimeout(this.timeout);
		}else{
			setTimeout(so_xfade,1000);
		}
	} else {
		setTimeout(so_xfade,50);
	}
	
	
	function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}
	
}