(function ($) {
    if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) {
        alert('blockUI requires jQuery v1.2.3 or later!  You are using v' + $.fn.jquery);
        return
    }
    $.blockUI = function (a) {
        install(window, a)
    };
    $.unblockUI = function (a) {
        remove(window, a)
    };
    $.fn.block = function (a) {
        return this.each(function () {
            if ($.css(this, 'position') == 'static') this.style.position = 'relative';
            if ($.browser.msie) this.style.zoom = 1;
            install(this, a)
        })
    };
    $.fn.unblock = function (a) {
        return this.each(function () {
            remove(this, a)
        })
    };
    $.blockUI.version = 2.04;
    $.blockUI.defaults = {
        message: '<h1>Loading, Please wait...</h1>',
        css: {
            padding: 0,
            margin: 0,
            width: '',
            top: '30%',
            left: '25%',
            textAlign: '',
            color: '',
            border: '',
            padding: '',
            backgroundColor: '',
            cursor: 'default',
            fontfamily: ''
        },
        overlayCSS: {
            backgroundColor: '#EFEFEF',
            opacity: '0.6'
        },
        baseZ: 1000,
        centerX: true,
        centerY: true,
        allowBodyStretch: true,
        constrainTabKey: true,
        fadeOut: 400,
        applyPlatformOpacityRules: true
    };
    var q = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent);
    var r = null;
    var u = [];

    function install(a, b) {
        var c = (a == window);
        var d = b && b.message !== undefined ? b.message : undefined;
        b = $.extend({}, $.blockUI.defaults, b || {});
        b.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, b.overlayCSS || {});
        var e = $.extend({}, $.blockUI.defaults.css, b.css || {});
        d = d === undefined ? b.message : d;
        if (c && r) remove(window, {
            fadeOut: 0
        });
        if (d && typeof d != 'string' && (d.parentNode || d.jquery)) {
            var f = d.jquery ? d[0] : d;
            var g = {};
            $(a).data('blockUI.history', g);
            g.el = f;
            g.parent = f.parentNode;
            g.display = f.style.display;
            g.parent.removeChild(f)
        }
        var z = b.baseZ;
        var h = ($.browser.msie) ? $('<iframe class="blockUI" style="z-index:' + z+++';border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="javascript:false;"></iframe>') : $('<div class="blockUI" style="display:none"></div>');
        var j = $('<div class="blockUI" style="z-index:' + z+++';cursor:wait;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>');
        var k = c ? $('<div class="blockUI blockMsg blockPage" style="z-index:' + z + ';position:fixed"></div>') : $('<div class="blockUI blockMsg blockElement" style="z-index:' + z + ';display:none;position:absolute"></div>');
        if (d) k.css(e);
        if (!b.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform))) j.css(b.overlayCSS);
        j.css('position', c ? 'fixed' : 'absolute');
        if ($.browser.msie) h.css('opacity', '0.0');
        $([h[0], j[0], k[0]]).appendTo(c ? 'body' : a);
        var m = $.browser.msie && (!$.boxModel || $('object,embed', c ? null : a).length > 0);
        if (q || m) {
            if (c && b.allowBodyStretch && $.boxModel) $('html,body').css('height', '100%');
            if ((q || !$.boxModel) && !c) {
                var t = sz(a, 'borderTopWidth'),
                    l = sz(a, 'borderLeftWidth');
                var n = t ? '(0 - ' + t + ')' : 0;
                var p = l ? '(0 - ' + l + ')' : 0
            }
            $.each([h, j, k], function (i, o) {
                var s = o[0].style;
                s.position = 'absolute';
                if (i < 2) {
                    c ? s.setExpression('height', 'document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + "px"') : s.setExpression('height', 'this.parentNode.offsetHeight + "px"');
                    c ? s.setExpression('width', 'jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"') : s.setExpression('width', 'this.parentNode.offsetWidth + "px"');
                    if (p) s.setExpression('left', p);
                    if (n) s.setExpression('top', n)
                } else if (b.centerY) {
                    if (c) s.setExpression('top', '(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"');
                    s.marginTop = 0
                }
            })
        }
        k.append(d).show();
        if (d && (d.jquery || d.nodeType)) $(d).show();
        bind(1, a, b);
        if (c) {
            r = k[0];
            u = $(':input:enabled:visible', r);
            setTimeout(focus, 20)
        } else center(k[0], b.centerX, b.centerY)
    };

    function remove(a, b) {
        var c = a == window;
        var d = $(a).data('blockUI.history');
        b = $.extend(true, {}, $.blockUI.defaults, b);
        bind(0, a, b);
        var e = c ? $('body > .blockUI') : $('.blockUI', a);
        if (c) r = u = null;
        if (b.fadeOut) {
            e.fadeOut(b.fadeOut);
            setTimeout(function () {
                reset(e, d)
            }, b.fadeOut)
        } else reset(e, d)
    };

    function reset(a, b) {
        a.each(function (i, o) {
            if (this.parentNode) this.parentNode.removeChild(this)
        });
        if (b && b.el) {
            b.el.style.display = b.display;
            b.parent.appendChild(b.el);
            $(b.el).removeData('blockUI.history')
        }
    };

    function bind(b, a, c) {
        var d = a == window,
            $el = $(a);
        if (!b && (d && !r || !d && !$el.data('blockUI.isBlocked'))) return;
        if (!d) $el.data('blockUI.isBlocked', b);
        var e = 'mousedown mouseup keydown keypress click';
        b ? $(document).bind(e, c, handler) : $(document).unbind(e, handler)
    };

    function handler(e) {
        if (e.keyCode && e.keyCode == 9) {
            if (r && e.data.constrainTabKey) {
                var a = u;
                var b = !e.shiftKey && e.target == a[a.length - 1];
                var c = e.shiftKey && e.target == a[0];
                if (b || c) {
                    setTimeout(function () {
                        focus(c)
                    }, 10);
                    return false
                }
            }
        }
        if ($(e.target).parents('div.blockMsg').length > 0) return true;
        return $(e.target).parents().children().filter('div.blockUI').length == 0
    };

    function focus(a) {
        if (!u) return;
        var e = u[a === true ? u.length - 1 : 0];
        if (e) e.focus()
    };

    function center(a, x, y) {
        var p = a.parentNode,
            s = a.style;
        var l = ((p.offsetWidth - a.offsetWidth) / 2) - sz(p, 'borderLeftWidth');
        var t = ((p.offsetHeight - a.offsetHeight) / 2) - sz(p, 'borderTopWidth');
        if (x) s.left = l > 0 ? (l + 'px') : '0';
        if (y) s.top = t > 0 ? (t + 'px') : '0'
    };

    function sz(a, p) {
        return parseInt($.css(a, p)) || 0
    }
})(jQuery);