ÿþ/*
* jQuery Tooltip plugin 1.3
*
* http://bassistance.de/jquery-plugins/jquery-plugin-tooltip/
* http://docs.jquery.com/Plugins/Tooltip
*
* Copyright (c) 2006 - 2008 Jörn Zaefferer
*
* $Id: jquery.tooltip.js 5741 2008-06-21 15:22:16Z joern.zaefferer $
* 
* Dual licensed under the MIT and GPL licenses:
*   http://www.opensource.org/licenses/mit-license.php
*   http://www.gnu.org/licenses/gpl.html
*/



; (function($) {



    // the tooltip element

    var helper = {},

    // the current tooltipped element

		current,

    // the title of the current element, used for restoring

		title,

    // timeout id for delayed tooltips

		tID,

    // IE 5.5 or 6

		IE = $.browser.msie && /MSIE\s(5\.5|6\.)/.test(navigator.userAgent),

    // flag for mouse tracking

		track = false;



    $.tooltip = {

        blocked: false,

        defaults: {

            delay: 200,

            fade: false,

            showURL: true,

            extraClass: "",

            top: 15,

            left: 15,

            id: "tooltip"

        },

        block: function() {

            $.tooltip.blocked = !$.tooltip.blocked;

        }

    };



    $.fn.extend({

        tooltip: function(settings) {

            settings = $.extend({}, $.tooltip.defaults, settings);

            createHelper(settings);

            return this.each(function() {

                $.data(this, "tooltip", settings);

                this.tOpacity = helper.parent.css("opacity");

                // copy tooltip into its own expando and remove the title

                this.tooltipText = this.title;

                $(this).removeAttr("title");

                // also remove alt attribute to prevent default tooltip in IE

                this.alt = "";

            })

				.mouseover(save)

				.mouseout(hide)

				.click(hide);

        },

        fixPNG: IE ? function() {

            return this.each(function() {

                var image = $(this).css('backgroundImage');

                if (image.match(/^url\(["']?(.*\.png)["']?\)$/i)) {

                    image = RegExp.$1;

                    $(this).css({

                        'backgroundImage': 'none',

                        'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='" + image + "')"

                    }).each(function() {

                        var position = $(this).css('position');

                        if (position != 'absolute' && position != 'relative')

                            $(this).css('position', 'relative');

                    });

                }

            });

        } : function() { return this; },

        unfixPNG: IE ? function() {

            return this.each(function() {

                $(this).css({ 'filter': '', backgroundImage: '' });

            });

        } : function() { return this; },

        hideWhenEmpty: function() {

            return this.each(function() {

                $(this)[$(this).html() ? "show" : "hide"]();

            });

        },

        url: function() {

            return this.attr('href') || this.attr('src');

        }

    });



    function createHelper(settings) {

        // there can be only one tooltip helper

        if (helper.parent)

            return;

        // create the helper, h3 for title, div for url

        helper.parent = $('<div id="' + settings.id + '"><h3></h3><div class="body"></div><div class="url"></div></div>')

        // add to document

			.appendTo(document.body)

        // hide it at first

			.hide();



        // apply bgiframe if available

        if ($.fn.bgiframe)

            helper.parent.bgiframe();



        // save references to title and url elements

        helper.title = $('h3', helper.parent);

        helper.body = $('div.body', helper.parent);

        helper.url = $('div.url', helper.parent);

    }



    function settings(element) {

        return $.data(element, "tooltip");

    }



    // main event handler to start showing tooltips

    function handle(event) {

        // show helper, either with timeout or on instant

        if (settings(this).delay)

            tID = setTimeout(show, settings(this).delay);

        else

            show();



        // if selected, update the helper position when the mouse moves

        track = !!settings(this).track;

        $(document.body).bind('mousemove', update);



        // update at least once

        update(event);

    }



    // save elements title before the tooltip is displayed

    function save() {

        // if this is the current source, or it has no title (occurs with click event), stop

        if ($.tooltip.blocked || this == current || (!this.tooltipText && !settings(this).bodyHandler))

            return;



        // save current

        current = this;

        title = this.tooltipText;



        if (settings(this).bodyHandler) {

            helper.title.hide();

            var bodyContent = settings(this).bodyHandler.call(this);

            if (bodyContent.nodeType || bodyContent.jquery) {

                helper.body.empty().append(bodyContent)

            } else {

                helper.body.html(bodyContent);

            }

            helper.body.show();

        } else if (settings(this).showBody) {

            var parts = title.split(settings(this).showBody);

            helper.title.html(parts.shift()).show();

            helper.body.empty();

            for (var i = 0, part; (part = parts[i]); i++) {

                if (i > 0)

                    helper.body.append("<br/>");

                helper.body.append(part);

            }

            helper.body.hideWhenEmpty();

        } else {

            helper.title.html(title).show();

            helper.body.hide();

        }



        // if element has href or src, add and show it, otherwise hide it

        if (settings(this).showURL && $(this).url())

            helper.url.html($(this).url().replace('http://', '')).show();

        else

            helper.url.hide();



        // add an optional class for this tip

        helper.parent.addClass(settings(this).extraClass);



        // fix PNG background for IE

        if (settings(this).fixPNG)

            helper.parent.fixPNG();



        handle.apply(this, arguments);

    }



    // delete timeout and show helper

    function show() {

        tID = null;

        if ((!IE || !$.fn.bgiframe) && settings(current).fade) {

            if (helper.parent.is(":animated"))

                helper.parent.stop().show().fadeTo(settings(current).fade, current.tOpacity);

            else

                helper.parent.is(':visible') ? helper.parent.fadeTo(settings(current).fade, current.tOpacity) : helper.parent.fadeIn(settings(current).fade);

        } else {

            helper.parent.show();

        }

        update();

    }



    /**
    * callback for mousemove
    * updates the helper position
    * removes itself when no current element
    */

    function update(event) {

        if ($.tooltip.blocked)

            return;



        if (event && event.target.tagName == "OPTION") {

            return;

        }



        // stop updating when tracking is disabled and the tooltip is visible

        if (!track && helper.parent.is(":visible")) {

            $(document.body).unbind('mousemove', update)

        }



        // if no current element is available, remove this listener

        if (current == null) {

            $(document.body).unbind('mousemove', update);

            return;

        }



        // remove position helper classes

        helper.parent.removeClass("viewport-right").removeClass("viewport-bottom");



        var left = helper.parent[0].offsetLeft;

        var top = helper.parent[0].offsetTop;

        if (event) {

            // position the helper 15 pixel to bottom right, starting from mouse position

            left = event.pageX + settings(current).left;

            top = event.pageY + settings(current).top;

            var right = 'auto';

            if (settings(current).positionLeft) {

                right = $(window).width() - left;

                left = 'auto';

            }

            helper.parent.css({

                left: left,

                right: right,

                top: top

            });

        }



        var v = viewport(),

			h = helper.parent[0];

        // check horizontal position

        if (v.x + v.cx < h.offsetLeft + h.offsetWidth) {

            left -= h.offsetWidth + 20 + settings(current).left;

            helper.parent.css({ left: left + 'px' }).addClass("viewport-right");

        }

        // check vertical position

        if (v.y + v.cy < h.offsetTop + h.offsetHeight) {

            top -= h.offsetHeight + 20 + settings(current).top;

            helper.parent.css({ top: top + 'px' }).addClass("viewport-bottom");

        }

    }



    function viewport() {

        return {

            x: $(window).scrollLeft(),

            y: $(window).scrollTop(),

            cx: $(window).width(),

            cy: $(window).height()

        };

    }



    // hide helper and restore added classes and the title

    function hide(event) {

        if ($.tooltip.blocked)

            return;

        // clear timeout if possible

        if (tID)

            clearTimeout(tID);

        // no more current element

        current = null;



        var tsettings = settings(this);

        function complete() {

            helper.parent.removeClass(tsettings.extraClass).hide().css("opacity", "");

        }

        if ((!IE || !$.fn.bgiframe) && tsettings.fade) {

            if (helper.parent.is(':animated'))

                helper.parent.stop().fadeTo(tsettings.fade, 0, complete);

            else

                helper.parent.stop().fadeOut(tsettings.fade, complete);

        } else

            complete();



        if (settings(this).fixPNG)

            helper.parent.unfixPNG();

    }



})(jQuery);