/*
函数功能：实现选项卡功能
参数说明：
name：选项卡系列名称
index：选中的选项卡的索引
count：选项卡的总数
className：选项卡标题的CSS样式
*/
function tab(name, index, count, oldclassName, className) {
    for (i = 0; i < count; i++) {
        var title = document.getElementById(name + "title_" + i);
        var context = document.getElementById(name + "context_" + i);
        if (title && title.className != "") {
            title.className = oldclassName;
        }
        if (context) {
            context.style.display = "none";
        }
    }
    document.getElementById(name + "context_" + index).style.display = "";
    document.getElementById(name + "title_" + index).className = className;
}

function tabone(name, index, count, oldclassName, className, oneOldclassName, oneClassName) {
    for (i = 0; i < count; i++) {
        var title = document.getElementById(name + "title_" + i);
        var context = document.getElementById(name + "context_" + i);
        if (title && title.className != "") {
            if (i == 0)
                title.className = oneOldclassName;
            else
                title.className = oldclassName;
        }
        if (context) {
            context.style.display = "none";
        }
    }
    document.getElementById(name + "context_" + index).style.display = "";
    if (index == 0)
        document.getElementById(name + "title_" + index).className = oneClassName;
    else
        document.getElementById(name + "title_" + index).className = className;
}

var delta = 0.15
var collection;
function floaters()
{
    this.items = [];
    this.addItem = function(id, x, y, content)
    {
        document.write('<DIV id=' + id + ' style="Z-INDEX: 1000; POSITION: absolute;width:80px; height:30px;left:' + (typeof (x) == 'string' ? eval(x) : x) + ';top:' + (typeof (y) == 'string' ? eval(y) : y) + '">' + content + '</DIV>');
        var newItem = {};
        newItem.object = document.getElementById(id);
        newItem.x = x;
        newItem.y = y;
        this.items[this.items.length] = newItem;
    }
    this.play = function()
    {
        collection = this.items
        setInterval('play()', 10);
    }
}
function play()
{
    if (screen.width <= 800)
    {
        for (var i = 0; i < collection.length; i++)
        {
            collection[i].object.style.display = 'none';
        }
        return;
    }
    for (var i = 0; i < collection.length; i++)
    {
        var followObj = collection[i].object;
        var followObj_x = (typeof (collection[i].x) == 'string' ? eval(collection[i].x) : collection[i].x);
        var followObj_y = (typeof (collection[i].y) == 'string' ? eval(collection[i].y) : collection[i].y);
        if (followObj.offsetLeft != (document.body.scrollLeft + followObj_x))
        {
            var dx = (document.body.scrollLeft + followObj_x - followObj.offsetLeft) * delta;
            dx = (dx > 0 ? 1 : -1) * Math.ceil(Math.abs(dx));
            followObj.style.left = followObj.offsetLeft + dx;
        }
        if (followObj.offsetTop != (document.body.scrollTop + followObj_y))
        {
            var dy = (document.body.scrollTop + followObj_y - followObj.offsetTop) * delta;
            dy = (dy > 0 ? 1 : -1) * Math.ceil(Math.abs(dy));
            followObj.style.top = followObj.offsetTop + dy;
        }
        followObj.style.display = '';
    }
}
function hide(num) { document.getElementById("followDiv" + num).style.visibility = "hidden"; }