// JavaScript Document
function scrTab(name, cursel) {
    cursel_0 = cursel;
    for (var i = 1; i <= links_len; i++) {
        var menu = document.getElementById(name + i);
        var menudiv = document.getElementById("wrap_" + name + "_" + i);
        if (i == cursel) {
            menu.className = "off";
            menudiv.style.display = "block";
        }
        else {
            menu.className = "";
            menudiv.style.display = "none";
        }
    }
}
function Next() {
    cursel_0++;
    if (cursel_0 > links_len) cursel_0 = 1
    scrTab(name_0, cursel_0);
}
var name_0 = 'onead';
var cursel_0 = 1;
var ScrollTime = 3000; //循环周期（毫秒）
var links_len, iIntervalId;
onload = function() {
    var links = document.getElementById("tab1").getElementsByTagName('li')
    links_len = links.length;
    for (var i = 0; i < links_len; i++) {
        links[i].onmouseover = function() {
            clearInterval(iIntervalId);
            this.onmouseout = function() {
                iIntervalId = setInterval(Next, ScrollTime); ;
            }
        }
    }
    document.getElementById("wrap_" + name_0 + "_" + links_len).parentNode.onmouseover = function() {
        clearInterval(iIntervalId);
        this.onmouseout = function() {
            iIntervalId = setInterval(Next, ScrollTime); ;
        }
    }
    scrTab(name_0, cursel_0);
    iIntervalId = setInterval(Next, ScrollTime);
}


function ImgAutol(i,maxw,maxh) {//你必须给图片提前设定初始宽度和高度,建议直接就是最大宽度和高度

    var MaxW = maxw; //定义图片显示的最大宽度
    var MaxH = maxh; //定义图片显示的最大高度
    var o = new Image(); o.src = i.src; var w = o.width; var h = o.height; var t; if (w > MaxW) { t = MaxW; } else { t = w; }
    if ((h * t / w) > MaxH) { i.height = MaxH; i.width = MaxH / h * w; } else { i.width = t; i.height = t / w * h; }



}