// ----------------------------------------------------------------------

// <summary>

// 限制只能输入数字

// demo: $(".onlyNum").onlyNum(); 限制使用了onlyNum类样式的控件只能输入数字

// </summary>

// ----------------------------------------------------------------------

$.fn.onlyNum = function () {

    $(this).keypress(function (event) {

        var eventObj = event || e;

        var keyCode = eventObj.keyCode || eventObj.which;

        if ((keyCode >= 48 && keyCode <= 57))

            return true;

        else

            return false;

    }).focus(function () {

        //禁用输入法

        this.style.imeMode = 'disabled';

    }).bind("paste", function () {

        //获取剪切板的内容

        var clipboard = window.clipboardData.getData("Text");

        if (/^\d+$/.test(clipboard))

            return true;

        else

            return false;

    });

};

// ----------------------------------------------------------------------

// <summary>

// 限制只能输入字母

// demo:  $(".onlyAlpha").onlyAlpha(); 限制使用了onlyNumAlpha类样式的控件只能输入数字和字母

// </summary>

// ----------------------------------------------------------------------

$.fn.onlyAlpha = function () {

    $(this).keypress(function (event) {

        var eventObj = event || e;

        var keyCode = eventObj.keyCode || eventObj.which;

        if ((keyCode >= 65 && keyCode <= 90) || (keyCode >= 97 && keyCode <= 122))

            return true;

        else

            return false;

    }).focus(function () {

        this.style.imeMode = 'disabled';

    }).bind("paste", function () {

        var clipboard = window.clipboardData.getData("Text");

        if (/^[a-zA-Z]+$/.test(clipboard))

            return true;

        else

            return false;

    });

};

// ----------------------------------------------------------------------

// <summary>

// 限制只能输入数字和字母

// demo: $(".onlyNumAlpha").onlyNumAlpha(); 限制使用了onlyNumAlpha类样式的控件只能输入数字和字母

// </summary>

// ----------------------------------------------------------------------

$.fn.onlyNumAlpha = function () {

    $(this).keypress(function (event) {

        var eventObj = event || e;

        var keyCode = eventObj.keyCode || eventObj.which;

        if ((keyCode >= 48 && keyCode <= 57) || (keyCode >= 65 && keyCode <= 90) || (keyCode >= 97 && keyCode <= 122))

            return true;

        else

            return false;

    }).focus(function () {

        this.style.imeMode = 'disabled';

    }).bind("paste", function () {

        var clipboard = window.clipboardData.getData("Text");

        if (/^(\d|[a-zA-Z])+$/.test(clipboard))

            return true;

        else

            return false;

    });

};