//** Smooth Navigational Menu- By Dynamic Drive DHTML code library: http://www.dynamicdrive.com
//** Script Download/ instructions page: http://www.dynamicdrive.com/dynamicindex1/ddlevelsmenu/
//** Menu created: Nov 12, 2008

//** Dec 12th, 08" (v1.01): Fixed Shadow issue when multiple LIs within the same UL (level) contain sub menus: http://www.dynamicdrive.com/forums/showthread.php?t=39177&highlight=smooth

//** Feb 11th, 09" (v1.02): The currently active main menu item (LI A) now gets a CSS class of ".selected", including sub menu items.

var ddsmoothmenu={

    //Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
    arrowimages: {down:['downarrowclass', 'http://www.onlineinfoservices.com/start/images/down.gif', 23], right:['rightarrowclass', 'http://www.onlineinfoservices.com/start/images/right.gif']},

    transition: {overtime:300, outtime:300}, //duration of slide in/ out animation, in milliseconds
    shadow: {enabled:false, offsetx:5, offsety:5},

    ///////Stop configuring beyond here///////////////////////////

    detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)

    getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
	    var $menucontainer=$('#'+setting.contentsource[0]) //reference empty div on page that will hold menu
	    $menucontainer.html("Loading Menu...")
	    $.ajax({
		    url: setting.contentsource[1], //path to external menu file
		    async: true,
		    error:function(ajaxrequest){
			    $menucontainer.html('Error fetching content. Server Response: '+ajaxrequest.responseText)
		    },
		    success:function(content){
			    $menucontainer.html(content)
			    ddsmoothmenu.buildmenu($, setting)
		    }
	    })
    },

    buildshadow:function($, $subul){
    	
    },

    buildmenu:function($, setting){
	    var smoothmenu=ddsmoothmenu
	    var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
	    var $headers=$mainmenu.find("ul").parent()
	    $headers.hover(
		    function(e){
			    $(this).children('a:eq(0)').addClass('selected')
		    },
		    function(e){
			    $(this).children('a:eq(0)').removeClass('selected')
		    }
	    )
	    $headers.each(function(i){
		    var $curobj=$(this).css({zIndex: 100-i}) //reference current LI header
		    var $subul=$(this).find('ul:eq(0)').css({display:'block'})
		    this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()}
		    this.istopheader=$curobj.parents("ul").length==1? true : false //is top level header?
		    $subul.css({top:this.istopheader? this._dimensions.h+"px" : 0})
		    $curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			    '<img src="'+ (this.istopheader? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			    +'" class="' + (this.istopheader? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			    + '" style="border:0;" />'
		    )
		    if (smoothmenu.shadow.enabled){
			    this._shadowoffset={x:(this.istopheader?$subul.offset().left+smoothmenu.shadow.offsetx : this._dimensions.w), y:(this.istopheader? $subul.offset().top+smoothmenu.shadow.offsety : $curobj.position().top)} //store this shadow's offsets
			    if (this.istopheader)
				    $parentshadow=$(document.body)
			    else{
				    var $parentLi=$curobj.parents("li:eq(0)")
				    $parentshadow=$parentLi.get(0).$shadow
			    }
			    this.$shadow=$('<div class="ddshadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($parentshadow).css({left:this._shadowoffset.x+'px', top:this._shadowoffset.y+'px'})  //insert shadow DIV and set it to parent node for the next shadow div
		    }
		    $curobj.hover(
			    function(e){
				    var $targetul=$(this).children("ul:eq(0)")
				    this._offsets={left:$(this).offset().left, top:$(this).offset().top}
				    var menuleft=this.istopheader? 0 : this._dimensions.w
				    menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
				    if ($targetul.queue().length<=1){ //if 1 or less queued animations
					    $targetul.css({left:menuleft+"px", width:this._dimensions.subulw+'px'}).animate({height:'show',opacity:'show'}, ddsmoothmenu.transition.overtime)
					    if (smoothmenu.shadow.enabled){
						    var shadowleft=this.istopheader? $targetul.offset().left+ddsmoothmenu.shadow.offsetx : menuleft
						    var shadowtop=this.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : this._shadowoffset.y
						    if (!this.istopheader && ddsmoothmenu.detectwebkit){ //in WebKit browsers, restore shadow's opacity to full
							    this.$shadow.css({opacity:1})
						    }
						    this.$shadow.css({overflow:'', width:this._dimensions.subulw+'px', left:shadowleft+'px', top:shadowtop+'px'}).animate({height:this._dimensions.subulh+'px'}, ddsmoothmenu.transition.overtime)
					    }
				    }
			    },
			    function(e){
				    var $targetul=$(this).children("ul:eq(0)")
				    $targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
				    if (smoothmenu.shadow.enabled){
					    if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						    this.$shadow.children('div:eq(0)').css({opacity:0})
					    }
					    this.$shadow.css({overflow:'hidden'}).animate({height:0}, ddsmoothmenu.transition.outtime)
				    }
			    }
		    ) //end hover
	    }) //end $headers.each()
	    $mainmenu.find("ul").css({display:'none', visibility:'visible'})
    },

    init:function(setting){
	    if (typeof setting.customtheme=="object" && setting.customtheme.length==2){
		    var mainmenuid='#'+setting.mainmenuid
		    document.write('<style type="text/css">\n'
			    +mainmenuid+', '+mainmenuid+' ul li a {background:'+setting.customtheme[0]+';}\n'
			    +mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
		    +'</style>')
	    }
	    jQuery(document).ready(function($){ //override default menu colors (default/hover) with custom set?
		    if (typeof setting.contentsource=="object"){ //if external ajax menu
			    ddsmoothmenu.getajaxmenu($, setting)
		    }
		    else{ //else if markup menu
			    ddsmoothmenu.buildmenu($, setting)
		    }
	    })
    }

} //end ddsmoothmenu variable

//Initialize Menu instance(s):

ddsmoothmenu.init({
	mainmenuid: "smoothmenu1", //menu DIV id
	//customtheme: ["#1c5a80", "#18374a"], //override default menu CSS background values? Uncomment: ["normal_background", "hover_background"]
	contentsource: "markup" //"markup" or ["container_id", "path_to_menu_file"]
})