/* Flex Level Drop Down Menu v1.1
* Created: Jan 5th, 2010 by DynamicDrive.com. This notice must stay intact for usage 
* Author: Dynamic Drive at http://www.dynamicdrive.com/
* Visit http://www.dynamicdrive.com/ for full source code
*/

//Version 1.1 (Feb 19th, 2010): Each flex menu (UL) can now be associated with a link dynamically, and/or defined using JavaScript instead of as markup.

//Usage: $(elementselector).addflexmenu('menuid', options)
//ie:
//jQuery(document).ready(function($){
//$('a.mylinks').addflexmenu('flexmenu1') //apply flex menu with ID "flexmenu1" to links with class="mylinks"
//})

jQuery.noConflict()

var flexdropdownmenu = {
    arrowpath: 'arrow.gif', //full URL or path to arrow image
    animspeed: 200, //reveal animation speed (in milliseconds)
    showhidedelay: [150, 150], //delay before menu appears and disappears when mouse rolls over it, in milliseconds

    //***** NO NEED TO EDIT BEYOND HERE
    startzindex: 1000,
    builtflexmenuids: [], //ids of flex menus already built (to prevent repeated building of same flex menu)

    positionul: function($, $ul, e, $anchor) {
        var istoplevel = $ul.hasClass('jqflexmenu') //Bool indicating whether $ul is top level flex menu DIV
        var docrightedge = $(document).scrollLeft() + $(window).width() - 40 //40 is to account for shadows in FF
        var docbottomedge = $(document).scrollTop() + $(window).height() - 40
        if (istoplevel) { //if main flex menu DIV
            var offsets = $anchor.offset()
            var anchorsetting = $anchor.data('setting')
            var x = offsets.left + anchorsetting.useroffsets[0] + (anchorsetting.dir == "h" ? $anchor.outerWidth() : 0) //x pos of main flex menu UL
            var y = offsets.top + anchorsetting.useroffsets[1] + (anchorsetting.dir == "h" ? 0 : $anchor.outerHeight())
            x = (x + $ul.data('dimensions').w > docrightedge) ? x - (anchorsetting.useroffsets[0] * 2) - $ul.data('dimensions').w + $anchor.outerWidth() + (anchorsetting.dir == "h" ? -($anchor.outerWidth() * 2) : 0) : x //if not enough horizontal room to the ridge of the cursor
            y = (y + $ul.data('dimensions').h > docbottomedge) ? y - (anchorsetting.useroffsets[1] * 2) - $ul.data('dimensions').h - $anchor.outerHeight() + (anchorsetting.dir == "h" ? ($anchor.outerHeight() * 2) : 0) : y
        }
        else { //if sub level flex menu UL
            var $parentli = $ul.data('$parentliref')
            var parentlioffset = $parentli.offset()
            var x = $ul.data('dimensions').parentliw //x pos of sub UL
            var y = 0
            x = (parentlioffset.left + x + $ul.data('dimensions').w > docrightedge) ? x - $ul.data('dimensions').parentliw - $ul.data('dimensions').w : x //if not enough horizontal room to the ridge parent LI
            y = (parentlioffset.top + $ul.data('dimensions').h > docbottomedge) ? y - $ul.data('dimensions').h + $ul.data('dimensions').parentlih : y
        }
        $ul.css({ left: x, top: y })
    },

    showbox: function($, $flexmenu, e) {
        clearTimeout($flexmenu.data('timers').hidetimer)
        $flexmenu.data('timers').showtimer = setTimeout(function() { $flexmenu.show(flexdropdownmenu.animspeed) }, this.showhidedelay[0])
    },

    hidebox: function($, $flexmenu) {
        clearTimeout($flexmenu.data('timers').showtimer)
        $flexmenu.data('timers').hidetimer = setTimeout(function() { $flexmenu.hide(100) }, this.showhidedelay[1]) //hide flex menu plus all of its sub ULs
    },


    buildflexmenu: function($, $menu, $target) {
        $menu.css({ display: 'block', visibility: 'hidden', zIndex: this.startzindex }).addClass('jqflexmenu').appendTo(document.body)
        $menu.bind('mouseenter', function() {
            clearTimeout($menu.data('timers').hidetimer)
        })
        $menu.bind('mouseleave', function() { //hide menu when mouse moves out of it
            flexdropdownmenu.hidebox($, $menu)
        })
        $menu.data('dimensions', { w: $menu.outerWidth(), h: $menu.outerHeight() }) //remember main menu's dimensions
        $menu.data('timers', {})
        var $lis = $menu.find("ul").parent() //find all LIs within menu with a sub UL
        $lis.each(function(i) {
            var $li = $(this).css({ zIndex: 1000 + i })
            var $subul = $li.find('ul:eq(0)').css({ display: 'block' }) //set sub UL to "block" so we can get dimensions
            $subul.data('dimensions', { w: $subul.outerWidth(), h: $subul.outerHeight(), parentliw: this.offsetWidth, parentlih: this.offsetHeight })
            $subul.data('$parentliref', $li) //cache parent LI of each sub UL
            $subul.data('timers', {})
            $li.data('$subulref', $subul) //cache sub UL of each parent LI
            $li.children("a:eq(0)").append( //add arrow images
				'<img src="' + flexdropdownmenu.arrowpath + '" class="rightarrowclass" style="border:0;" />'
			)
            $li.bind('mouseenter', function(e) { //show sub UL when mouse moves over parent LI
                var $targetul = $(this).css('zIndex', ++flexdropdownmenu.startzindex).addClass("selected").data('$subulref')
                if ($targetul.queue().length <= 1) { //if 1 or less queued animations
                    clearTimeout($targetul.data('timers').hidetimer)
                    $targetul.data('timers').showtimer = setTimeout(function() {
                        flexdropdownmenu.positionul($, $targetul, e)
                        $targetul.show(flexdropdownmenu.animspeed)
                    }, flexdropdownmenu.showhidedelay[0])
                }
            })
            $li.bind('mouseleave', function(e) { //hide sub UL when mouse moves out of parent LI
                var $targetul = $(this).data('$subulref')
                clearTimeout($targetul.data('timers').showtimer)
                $targetul.data('timers').hidetimer = setTimeout(function() { $targetul.hide(100).data('$parentliref').removeClass('selected') }, flexdropdownmenu.showhidedelay[1])
            })
        })
        $menu.find('ul').andSelf().css({ display: 'none', visibility: 'visible' }) //collapse all ULs again
        this.builtflexmenuids.push($menu.get(0).id) //remember id of flex menu that was just built
    },



    init: function($, $target, $flexmenu) {
        if (this.builtflexmenuids.length == 0) { //only bind click event to document once
            $(document).bind("click", function(e) {
                if (e.button == 0) { //hide all flex menus (and their sub ULs) when left mouse button is clicked
                    $('.jqflexmenu').find('ul').andSelf().hide()
                }
            })
        }
        if (jQuery.inArray($flexmenu.get(0).id, this.builtflexmenuids) == -1) //if this flex menu hasn't been built yet
            this.buildflexmenu($, $flexmenu, $target)
        if ($target.parents().filter('ul.jqflexmenu').length > 0) //if $target matches an element within the flex menu markup, don't bind onflexmenu to that element
            return
        var useroffsets = $target.attr('data-offsets') ? $target.attr('data-offsets').split(',') : [0, 0] //get additional user offsets of menu
        useroffsets = [parseInt(useroffsets[0]), parseInt(useroffsets[1])]
        $target.data('setting', { dir: $target.attr('data-dir'), useroffsets: useroffsets }) //store direction (drop right or down) of menu plus user offsets
        $target.bind("mouseenter", function(e) {
            $flexmenu.css('zIndex', ++flexdropdownmenu.startzindex)
            flexdropdownmenu.positionul($, $flexmenu, e, $target)
            flexdropdownmenu.showbox($, $flexmenu, e)
        })
        $target.bind("mouseleave", function(e) {
            flexdropdownmenu.hidebox($, $flexmenu)
        })
    }
}

jQuery.fn.addflexmenu = function(flexmenuid, options) {
    var $ = jQuery
    return this.each(function() { //return jQuery obj
        var $target = $(this)
        if (typeof options == "object") { //if options parameter defined
            if (options.dir)
                $target.attr('data-dir', options.dir) //set/overwrite data-dir attr with defined value
            if (options.offsets)
                $target.attr('data-offsets', options.offsets) //set/overwrite data-offsets attr with defined value
        }
        if ($('#' + flexmenuid).length == 1) //check flex menu is defined
            flexdropdownmenu.init($, $target, $('#' + flexmenuid))
    })
};

//By default, add flex menu to anchor links with attribute "data-flexmenu"
jQuery(document).ready(function($) {
    var $anchors = $('*[data-flexmenu]')
    $anchors.each(function() {
        $(this).addflexmenu(this.getAttribute('data-flexmenu'))
    })
})


//ddlistmenu: Function to define a UL list menu dynamically

function ddlistmenu(id, className) {
    var menu = document.createElement('ul')
    if (id)
        menu.id = id
    if (className)
        menu.className = className
    this.menu = menu
}

ddlistmenu.prototype = {
    addItem: function(url, text, target) {
        var li = document.createElement('li')
        li.innerHTML = '<a href="' + url + '" target="' + target + '">' + text + '</a>'
        this.menu.appendChild(li)
        this.li = li
        return this
    },
    addSubMenu: function() {
        var s = new ddlistmenu(null, null)
        this.li.appendChild(s.menu)
        return s

    }
}