js产生完全不相同的随机数组，text新用法

1.判断在页面是鼠标的click事件还是手机移动端的tap事件

var _click = "ontouchend" in document ? "tap" : "click";

2.产生随机数组

Math.RandomNumbers = function (rn, rcount, bn, bcount) {
    var ret = [];
    var re = [];
    for (var i = 0; i < rcount; i++) {
        ret[i] = Math.ceil(Math.random()*(rn-1)+1);
        for (var n = 0; n < i; n++) {
            if (ret[i] == ret[n]) {
                ret[i] = Math.ceil(Math.random()*(rn-1)+1);
                n= -1;
            };
        };
        var type = typeof ret[i];
        ret[i] = ret[i]<10 && type!='string'?'0'+ret[i]:ret[i];
    }
    for (var i = 0; i < bcount; i++) {
        re[i] = Math.ceil(Math.random()*(bn-1)+1);
        for (var n = 0; n < i; n++) {
            if (re[i] == re[n]) {
                re[i] = Math.ceil(Math.random()*(bn-1)+1);
                n= -1;
            };
        };
        var type = typeof re[i];
        ret.push(re[i]<10 && type!='string'?'0'+re[i]:re[i]);
    };
    return ret;
}

3.text(n,current)    n是索引值，current是里面的文本值

$("#dtBall li").each(function(index, el) {
        $(this).find('em').text(function(n, curText){
                curText = deBall[index][n];
                return curText;
        })
        $(this).find('strong').text(deBall[index][6]);
    });