//var img = $('img');
var time = 5000; //设定的时间间隔
var t; 			//目前显示的图片编号
var n; 			//总共的图片量
var tmp = 0;
var lastClick = 6;
var mytimeout = 0;
var duration = 3;
var t = 0;
var n = 5;
function playImg() {
    t = (t + 1) % n;
    $('img').style.filter = "blendTrans(Duration=duration)";
    $('img').filters[0].apply(); 	//应用blendTrans滤镜
    $('img').src = arr[t]; 			//设定下一张用来更换的图片
    $('img').filters[0].play();
    $('focusIMGUrl').href = arrLink[t];
    for (var i = 0; i < 5; i++) {
        if (i == t) {
            $('FI' + i).className = 'focusCurrently';
            tmp = i;
        } else {
            $('FI' + i).className = 'focusGray';
        }
    }
    if (mytimeout) { clearTimeout(mytimeout); }
    mytimeout = setTimeout("playImg()", time); //设置循环定时器
}

function changeFocusIMG(n) {
    if (n != 6) {
        lastClick = n;
        for (var i = 0; i < 5; i++) {
            if (i == n) {
                $('FI' + i).className = 'focusCurrently';
                clearTimeout(mytimeout);
                t = n;
                $('img').src = arr[n];
                $('focusIMGUrl').href = arrLink[n];
            } else {
                $('FI' + i).className = 'focusGray';
            }
        }
    } else {
        clearTimeout(mytimeout);
        if (lastClick != 6) {
            $('FI' + lastClick).className = 'focusCurrently';
            clearTimeout(mytimeout);
            t = lastClick;
            $('img').src = arr[lastClick];
            $('focusIMGUrl').href = arrLink[lastClick];
        }
    }
}

function out() {
    lastClick = 6;
    if (mytimeout) { clearTimeout(mytimeout); }
    mytimeout = setTimeout("playImg()", time); //设置循环定时器
}