var timer = null;
var offset = 5000;
var index = 0;

function $j(elmid) { return $("#" + elmid); }

$(function () {
    var count = $("#newsnum").html();
    //change opacity
    //$('div.word').css({ opacity: 0.85 });
    //auto();
    hookthumb(count);
    //hookbtn();
    newhookbtn(count);
    bighookbtn(count);
    slideimage(0)
});  /*  |xgv00|d7b30c0224cec55b59311c4f2af116f7 */


//��ͼ�����ֻ�
function slideimage(i) {
    var id = 'image_' + target[i];
    //    $('#' + id)
    //        .animate({ opacity: 1 }, 800, function () {
    //            $(this).find('.word').animate({ height: 'show' }, 'slow');
    //        }).show()
    //        .siblings(':visible')
    //        .find('.word').animate({ height: 'hide' }, 'fast', function () {
    //            $(this).parent().animate({ opacity: 0 }, 800).hide();
    //        });
    var newid = target2[i];
    $.post("/ajax.ashx?action=slideimage&t=" + math.random(), {
        newid: newid
    }, function (msg) {

        $("#newsdetail").html(msg);
    });

}
//bind thumb a
function hookthumb(count) {
    $('#thumbs li a')
        .bind('click', function () {

            //            if (timer) {
            //                cleartimeout(timer);
            //            }
            var id = this.id;
            index = getindex(id.substr(6));
            //newid = getnewid(id.substr(6));
            rechange(index);
            slideimage(index);
            if (count == index + 1) {
                $(".btnext").hide();
                $(".bigbtnnext").hide(); 
            }
            else {
                $(".btnext").show();
                $(".bigbtnnext").show(); 
            }
            //timer = window.settimeout(auto, offset);
            this.blur();
            return false;
        });
}
//bind next/prev img
//function hookbtn() {
//    $('#thumbs li img').filter('#play_prev,#play_next')
//        .bind('click', function () {

//            if (timer) {
//                cleartimeout(timer);
//            }
//            var id = this.id;
//            if (id == 'play_prev') {
//                index--;
//                if (index < 0) index = 9;
//            } else {
//                index++;
//                if (index > 9) index = 0;
//            }
//            rechange(index);
//            slideimage(index);
//            timer = window.settimeout(auto, offset);
//        });
//}



//get index
function getindex(v) {
    for (var i = 0; i < target.length; i++) {
        if (target[i] == v) return i;
    }
}


function rechange(loop) {
    var id = 'thumb_' + target[loop];
    $('#thumbs li a.current').removeclass('current');
    $('#' + id).addclass('current');
}

function bighookbtn(count) {
    $('#bigpicarea p span').filter('#big_play_prev,#big_play_next')
        .bind('click', function () {

//            if (timer) {
//                cleartimeout(timer);
//            }
            var id = this.id;
            if (id == 'big_play_prev') {
                if (index != 0 && (index) % 6 == 0) {
                    scrollss(-660);
                }
                index--;
                if (index <= 0) index = 0;
                if (count > index) {
                    $(".btnext").show();
                    $(".bigbtnnext").show();
                }
            } else {
                if (index != 0 && (index + 1) % 6 == 0) {
                    scrollss(660);
                }
                index++;
                if (index > count) index = count;
                if (count == index + 1) {
                    $(".btnext").hide();
                    $(".bigbtnnext").hide();
                } 
            }
            if (count >= index + 1) {
                rechange(index);
                slideimage(index);
            }
            //timer = window.settimeout(auto, offset);
        });
}
function newhookbtn(count) {
    $('#smallpicarea img').filter('#play_prev,#play_next')
        .bind('click', function () {

//            if (timer) {
//                cleartimeout(timer);
//            }
            var id = this.id;
            if (id == 'play_prev') {

                if (index != 0 && (index) % 6 == 0) {
                    scrollss(-660);
                }
                index--;
                if (index <= 0) index = 0;
                if (count > index) {
                    $(".btnext").show();
                    $(".bigbtnnext").show();
                }

            } else {

                if (index != 0 && (index + 1) % 6 == 0) {
                    scrollss(660);
                }
                index++;
                if (index > count) index = count;

                if (count == index + 1) {
                    $(".btnext").hide();
                    $(".bigbtnnext").hide();
                } 
            }
            
            if (count > index) {

                rechange(index);
                slideimage(index);
            }

            //timer = window.settimeout(auto, offset);
        });
}

function scrollss(n) {
    tempding = n;
    document.getelementbyid('thumbs').scrollleft = document.getelementbyid('thumbs').scrollleft + tempding;
}
function auto() {

    index++;
    if (index > count) {
        index = 0;
    }
    rechange(index);
    slideimage(index);
    //timer = window.settimeout(auto, offset);

}