//获取当前日期
function GetDate() {
    var result;
    var todayDate = new Date();
    var year = todayDate.getFullYear();
    var month = todayDate.getMonth() + 1;
    var day = todayDate.getDate();
    var week = todayDate.getDay();
    switch (week) {
        case 1: week = "星期一"; break;
        case 2: week = "星期二"; break;
        case 3: week = "星期三"; break;
        case 4: week = "星期四"; break;
        case 5: week = "星期五"; break;
        case 6: week = "星期六"; break;
        case 7: week = "星期日"; break;
        default: break;
    }
    result = "今天是 " + year + "年" + month + "月" + day + "日  " + week;
    return result;
}

//判断目录或文件是否存在
function FileExist(filePath) {
    var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlhttp.open("GET", filePath, false);
    xmlhttp.send();
    if (xmlhttp.readyState == 4) {
        if (xmlhttp.status == 200)
            return true;
        else if (xmlhttp.status == 404)
            return false;
    }
    else {
        return false;
    }
}

//获取Url参数
function QueryString() {
    var name, value, i;
    var str = location.href;
    var num = str.indexOf("?")
    str = str.substr(num + 1);
    var arrtmp = str.split("&");
    for (i = 0; i < arrtmp.length; i++) {
        num = arrtmp[i].indexOf("=");
        if (num > 0) {
            name = arrtmp[i].substring(0, num);
            value = arrtmp[i].substr(num + 1);
            this[name] = value;
        }
    }
}