$(document).ready(function() {
    $.get('RandomXml/indexXml.xml?id' + new Date(), function(d) {

        var count = 0; //指定节点数量
        var weiarray = new Array(); //各节点的权值
        $(d).find('show').each(function() {
            var $show = $(this);
            var wei = $show.attr("weighted"); //获取权值
            weiarray[count] = parseInt(wei * Math.random());  //根据权值 生成随机数
            count++;
        });


        //取出最大的随机数
        var max = 0; //最大值
        var maxid = 0; //最大值的ID
        for (var i = 0; i < weiarray.length; i++) {
            if (weiarray[i] > max) {
                max = weiarray[i];
                maxid = i;
            }
        }


        var html = '';
        var description = '';
        var href = '';
        $(d).find('show').each(function() {
            var $show = $(this);
            var id = $show.attr("id");
            if (maxid == id) {
                description = $show.find('description').text();
                href = $show.find('link').text();
            }
        });

        $('#rand').html(description);
        //初始显示小提示，此处计算是小提示还是首页
        var randnumber = 0;
        if (description != "homepage") {
            randnumber = 4;
        } else {
            randnumber = 5;
            $("#info_4").css("display", "none");
            $("#info_5").css("display", "block");
        }
        var bll = 1;
        
        $("#nav li a").each(function(index) {
            $(this).hover(function() {
                if (bll == 1) {
                    onBg(randnumber, 1);
                    $("#div_text" + randnumber).hide();
                    bll = 2;
                }
                onBg(index + 1, 0);
                onText(index + 1);
            },
			function() {
			    onBg(index + 1, 1);
			    $("#div_text" + (index + 1)).hide();
			});
        });
        onBg(randnumber, 0);
        onText(randnumber);
    });
});