常用的JQ函数

/// <reference path="jquery-1.8.0.min.js">
/*
* DIV或元素居中
* @return
*/
jQuery.fn.mCenterDiv = function () {
    this.css("position", "absolute");
    this.css("border", "1px solid #ccc");
    this.css("top", ($(window).height() - this.height()) / 2 + $(window).scrollTop() + "px");
    this.css("left", ($(window).width() - this.width()) / 2 + $(window).scrollLeft() + "px");
    this.show(100);
    return this;
};

/*
* 获取URL参数
* @param name 参数
* @return
*/
jQuery.mGetUrlParam = function (name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return unescape(r[2]); return null;
};

/*
* 乘法函数，用来得到精确的乘法结果
* @param arg1 参数1
* @param arg2 参数2
* @return
*/
jQuery.mAccMul = function(arg1, arg2) {
    var m = 0, s1 = arg1.toString(), s2 = arg2.toString();
    try { m += s1.split(".")[1].length } catch (e) { }
    try { m += s2.split(".")[1].length } catch (e) { }
    return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m)
}

/*
* 将数值四舍五入(保留2位小数)后格式化成金额形式
* @param num 数值(Number或者String)
* @return 金额格式的字符串,如'1,234,567.45'
*/
jQuery.mFormatCurrency = function(num) {
    num = num.toString().replace(/\$|\,/g, '');
    if (isNaN(num))
        num = "0";
    sign = (num == (num = Math.abs(num)));
    num = Math.floor(num * 100 + 0.50000000001);
    cents = num % 100;
    num = Math.floor(num / 100).toString();
    if (cents < 10)
        cents = "0" + cents;
    for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
        num = num.substring(0, num.length - (4 * i + 3)) + ',' +
    num.substring(num.length - (4 * i + 3));
    return (((sign) ? '' : '-') + num + '.' + cents);
}

/*
* 正则验证
* @param s 验证字符串
* @param type 验证类型 money,china,mobile等
* @return
*/
jQuery.mCheck = function (s, type) {
    var objbool = false;
    var objexp = "";
    switch (type) {
        case 'money': //金额格式,格式定义为带小数的正数，小数点后最多三位
            objexp = "^[0-9]+[\.][0-9]{0,3}$";
            break;
        case 'numletter_': //英文字母和数字和下划线组成
            objexp = "^[0-9a-zA-Z\_]+$";
            break;
        case 'numletter': //英文字母和数字组成
            objexp = "^[0-9a-zA-Z]+$";
            break;
        case 'numletterchina': //汉字、字母、数字组成
            objexp = "^[0-9a-zA-Z\u4e00-\u9fa5]+$";
            break;
        case 'email': //邮件地址格式
            objexp = "^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$";
            break;
        case 'tel': //固话格式
            objexp = /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/;
            break;
        case 'mobile': //手机号码
            objexp = "^(13[0-9]|15[0-9]|18[0-9])([0-9]{8})$";
            break;
        case 'decimal': //浮点数
            objexp = "^[0-9]+([.][0-9]+)?$";
            break;
        case 'url': //网址
            objexp = "(http://|https://){0,1}[\w\/\.\?\&\=]+";
            break;
        case 'date': //日期 YYYY-MM-DD格式
            objexp = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/;
            break;
        case 'int': //整数
            objexp = "^[0-9]*[1-9][0-9]*$";
            break;
        case 'int+': //正整数包含0
            objexp = "^\\d+$";
            break;
        case 'int-': //负整数包含0
            objexp = "^((-\\d+)|(0+))$";
            break;
        case 'china': //中文
            objexp = /^[\u0391-\uFFE5]+$/;
            break;
    }
    var re = new RegExp(objexp);
    if (re.test(s)) {
        return true;
    }
    else {
        return false;
    }
};

/*
* 获取控件的值
* @param controlID 控件ID
* @param controltype 类型 如text radio
* @return
*/
jQuery.mGetValue = function (controlID, controltype) {
    var objValue = "";
    switch (controltype) {
        case 'text': //文本输入框
            objValue = $.trim($("#" + controlID + "").attr("value")); //取值去左右空格
            break;
        case 'radio': //单选框
            objValue = $("input[name='" + controlID + "']:checked").attr("value");
            break;
        case 'select': //下拉列表
            objValue = $("#" + controlID + "").attr("value");
            break;
        case 'checkbox': //多选框
            $("input[name='" + controlID + "']:checked").each(function () {
                objValue += $(this).val() + ",";
            });
            break;
        default:
            break;
    }
    return objValue;
};

/*
* 设置控件的值
* @param controlID 控件ID
* @param controltype 类型 如text radio
* @param controlvalue 绑定值
* @return
*/
jQuery.mSetValue = function (controlID, controltype, controlvalue) {
    switch (controltype) {
        case 'text': //文本输入框
            //$("#txtUserID").attr("value", '这是绑定内容'); //填充内容
            //$("input[name='radio1'][value='上海']").attr("checked", true); //单选组radio：设置value='上海'的项目为当前选中项
            //$("#select1").attr("value", '葡萄牙'); //下拉框select：设置value='中国'的项目为当前选中项
            //$("input[name='checkbox1'][value='黑色'],[value='蓝色']").attr("checked", true); //多选框：设置多个值为当前选中项
            $("#" + controlID + "").attr("value", controlvalue); //填充内容
            break;
        case 'radio': //单选框
            $("input[name='" + controlID + "'][value='" + controlvalue + "']").attr("checked", true);
            break;
        case 'select': //下拉列表
            $("#" + controlID + "").attr("value", controlvalue);
            break;
        case 'checkbox': //多选框
            $("input[name='" + controlID + "'][value='" + controlvalue + "'],[value='" + controlvalue + "']").attr("checked", true); //多选框：设置多个值为当前选中项
            break;
        default:
            break;
    }
};

/*
* 判断object是否空，未定义或null
* @param object
* @return
*/
jQuery.mIsNull = function (obj) {
    if (obj == "" || obj == "undefined" || obj == null) {
        return true;
    }
    else {
        return false;
    }
}

/*
* 兼容IE火狐等浏览器的自动跳转
* @param url 跳转网址
* @return
*/
jQuery.mAutoNav = function (url) {
    if ($.browser.msie) {
        var referLink = document.createElement('a');
        referLink.href = url;
        document.body.appendChild(referLink);
        referLink.click();
    } else {
        location.href = url;
    }
}

/*
* 屏幕居中显示处理进度
* @param info 显示文字
* @param type 方式 0遮罩 1不遮罩
* @param typepic 图片 0:load 1:ok 2:error
* @return
*/
jQuery.mMaskLoad = function (info, type, typepic) {
    var pic = "";
    switch (typepic) {
        case 0: // loading
            pic = "./Images/loading.gif";
            break;
        case 1: // ok
            pic = "./Images/right.png";
            break;
        case 2: // error
            pic = "./Images/error.png";
            break;
        default: //其他任何值时
            pic = "./Images/loading.gif";
            break;
    }
    if (type == 0) {
        $("<div class="\"datagrid-mask\""></div>").css(
        {
            display: "block",
            width: "100%",
            position: "absolute",
            left: "0",
            top: "0",
            opacity: "0.3",
            height: "100%",
            filter: "alpha(opacity=30)",
            background: "#ccc"
        }).appendTo("body");
    };
    $("<div class="\"datagrid-mask-msg\""></div>").css(
        {
            position: "absolute",
            top: "50%",
            padding: "12px 5px 10px 30px",
            width: "auto",
            height: "16px",
            border: "1px solid #D1D1D1",
            background: "#ffffff url('" + pic + "') no-repeat scroll 5px center",
            display: "block",
            left: ($(document.body).outerWidth(true) - 190) / 2,
            top: ($(window).height() - 45) / 2
        }).html(info).appendTo("body");
};

/*
* 屏幕居中隐藏处理进度
* @return
*/
jQuery.mMaskLoadClose = function () {
    $(".datagrid-mask").remove();
    $(".datagrid-mask-msg").remove();
};

/*
* 控件后创建SPAN作为TIP提示
* @param o 用this
* @param tip 提示文字
* @param typepic 图片 0:load 1:ok 2:error
* @return
*/
jQuery.mTip = function (o, tip, typepic) {
    var pic = "";
    switch (typepic) {
        case 0: // loading
            pic = "./Images/loading.gif";
            break;
        case 1: // ok
            pic = "./Images/right.png";
            break;
        case 2: // error
            pic = "./Images/error.png";
            break;
        default: //其他任何值时
            pic = "./Images/loading.gif";
            break;
    }
    var eTip = document.createElement("span");
    var objid = $(o).attr("id") + "_tipDiv";
    var value = $(o).val();
    //绝对路径
    var x = $(o).offset().top;
    var y = $(o).offset().left;
    var w = $(o).width();
    var h = $(o).height();
    eTip.setAttribute("id", objid);
    try {
        document.body.appendChild(eTip);
    } catch (e) { }
    $("#" + objid).hide();
    $("#" + objid).css({
        top: x,
        left: y + w + 10,
        height: h,
        position: "absolute",
    });
    $("#" + objid).html("<img src="" +="" pic="" "\"="" style="margin-right: 5px; display: none;"><img alt="加载中..." title="图片加载中..." src="http://www.2cto.com/statics/images/s_nopic.gif">" + tip);
    $("#" + objid).show();
}
</reference>