jquery-模仿qq提示消息

( function() {
    var ua = navigator.userAgent.toLowerCase();
    var is = (ua.match(/\b(chrome|opera|safari|msie|firefox)\b/) || [ '',
            'mozilla' ])[1];
    var r = '(?:' + is + '|version)[\\/: ]([\\d.]+)';
    var v = (ua.match(new RegExp(r)) || [])[1];
    jQuery.browser.is = is;
    jQuery.browser.ver = v;
    jQuery.browser[is] = true;

})();

( function(jQuery) {

    /*
     *
     * jQuery Plugin - Messager
     *
     * Author: corrie Mail: corrie@sina.com Homepage: www.corrie.net.cn
     *
     * Copyright (c) 2008 corrie.net.cn
     *
     * @license http://www.gnu.org/licenses/gpl.html [GNU General Public
     * License]
     *
     *
     *
     * $Date: 2008-12-26
     *
     * $Vesion: 1.5 @ how to use and example: Please Open index.html
     *
     */

    this.version = '@1.5';
    this.layer = {
        'width' :200,
        'height' :100
    };
    this.title = '信息提示';
    this.time = 4000;
    this.anims = {
        'type' :'slide',
        'speed' :600
    };
    this.timer1 = null;
    this.inits = function(title, text) {

        if ($("#message").is("div")) {
            return;
        }
        $(document.body)
                .prepend(
                        '<div id="message" style="border:#b9c9ef 1px solid;z-index:100;width:'
                                + this.layer.width
                                + 'px;height:'
                                + this.layer.height
                                + 'px;position:absolute; display:none;background:#cfdef4; bottom:0; right:0; overflow:hidden;"><div style="border:1px solid #fff;border-bottom:none;width:100%;height:25px;font-size:12px;overflow:hidden;color:#1f336b;"><span id="message_close" style="float:right;padding:5px 0 5px 0;width:16px;line-height:auto;color:red;font-size:12px;font-weight:bold;text-align:center;cursor:pointer;overflow:hidden;">×</span><div style="padding:5px 0 5px 5px;width:100px;line-height:18px;text-align:left;overflow:hidden;">'
                                + title
                                + '</div><div style="clear:both;"></div></div> <div style="padding-bottom:5px;border:1px solid #fff;border-top:none;width:100%;height:auto;font-size:12px;"><div id="message_content" style="margin:0 5px 0 5px;border:#b9c9ef 1px solid;padding:10px 0 10px 5px;font-size:12px;width:'
                                + (this.layer.width - 17)
                                + 'px;height:'
                                + (this.layer.height - 50)
                                + 'px;color:#1f336b;text-align:left;overflow:hidden;">'
                                + text + '</div></div></div>');

        $("#message_close").click( function() {
            setTimeout('this.close()', 1);
        });
        $("#message").hover( function() {
            clearTimeout(timer1);
            timer1 = null;
        }, function() {
            if (time > 0)
                timer1 = setTimeout('this.close()', time);
            });

        $(window).scroll(
                function() {
                    var bottomHeight =  "-"+document.documentElement.scrollTop;
                    $("#message").css("bottom", bottomHeight + "px");
                });

    };

    this.show = function(title, text, time) {
        if ($("#message").is("div")) {
            return;
        }
        if (title == 0 || !title)
            title = this.title;
        this.inits(title, text);
        if (time >= 0)
            this.time = time;
        switch (this.anims.type) {
        case 'slide':
            $("#message").slideDown(this.anims.speed);
            break;
        case 'fade':
            $("#message").fadeIn(this.anims.speed);
            break;
        case 'show':
            $("#message").show(this.anims.speed);
            break;
        default:
            $("#message").slideDown(this.anims.speed);
            break;
        }
        var bottomHeight =  "-"+document.documentElement.scrollTop;
        $("#message").css("bottom", bottomHeight + "px");

        if ($.browser.is == 'chrome') {
            setTimeout( function() {
                $("#message").remove();
                this.inits(title, text);
                $("#message").css("display", "block");
            }, this.anims.speed - (this.anims.speed / 5));
        }
        this.rmmessage(this.time);
    };

    this.lays = function(width, height) {

        if ($("#message").is("div")) {
            return;
        }
        if (width != 0 && width)
            this.layer.width = width;
        if (height != 0 && height)
            this.layer.height = height;
    }

    this.anim = function(type, speed) {
        if ($("#message").is("div")) {
            return;
        }
        if (type != 0 && type)
            this.anims.type = type;
        if (speed != 0 && speed) {
            switch (speed) {
            case 'slow':
                ;
                break;
            case 'fast':
                this.anims.speed = 200;
                break;
            case 'normal':
                this.anims.speed = 400;
                break;
            default:
                this.anims.speed = speed;
            }
        }
    }

    this.rmmessage = function(time) {
        if (time > 0) {
            timer1 = setTimeout('this.close()', time);
        }
    };
    this.close = function() {
        switch (this.anims.type) {
        case 'slide':
            $("#message").slideUp(this.anims.speed);
            break;
        case 'fade':
            $("#message").fadeOut(this.anims.speed);
            break;
        case 'show':
            $("#message").hide(this.anims.speed);
            break;
        default:
            $("#message").slideUp(this.anims.speed);
            break;
        }
        ;
        setTimeout('$("#message").remove();', this.anims.speed);
        this.original();
    }

    this.original = function() {
        this.layer = {
            'width' :200,
            'height' :100
        };
        this.title = '信息提示';
        this.time = 4000;
        this.anims = {
            'type' :'slide',
            'speed' :600
        };
    };
    jQuery.messager = this;
    return jQuery;
})(jQuery);