/* jQuery Mega Menu v1.02
* Last updated: June 29th, 2009. This notice must stay intact for usage 
* Author: JavaScript Kit at http://www.javascriptkit.com/
* Visit http://www.javascriptkit.com/script/script2/jScale/ for full source code
jQuery.noConflict();*/



var jkmegamenu={

effectduration: 300, //duration of animation, in milliseconds
delaytimer: 200, //delay after mouseout before menu should be hidden, in milliseconds

//No need to edit beyond here
megamenulabels: [],
megamenus: [], //array to contain each block menu instances
zIndexVal: 1000, //starting z-index value for drop down menu
$shimobj: null,

addshim:function($){
	$(document.body).append('<IFRAME id="outlineiframeshim" src="'+(location.protocol=="https:"? 'blank.htm' : 'about:blank')+'" style="display:none; left:0; top:0; z-index:999; position:absolute; filter:progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)" frameBorder="0" scrolling="no"></IFRAME>')
	this.$shimobj=$("#outlineiframeshim");
},

alignmenu:function($, e, megamenu_pos){
	var megamenu=this.megamenus[megamenu_pos];
	var $anchor=megamenu.$anchorobj;
	var $menu=megamenu.$menuobj;
	var menuleft=($(window).width()-(megamenu.offsetx-$(document).scrollLeft())>megamenu.actualwidth)? megamenu.offsetx : megamenu.offsetx-megamenu.actualwidth+megamenu.anchorwidth; //get x coord of menu
	//var menutop=($(window).height()-(megamenu.offsety-$(document).scrollTop()+megamenu.anchorheight)>megamenu.actualheight)? megamenu.offsety+megamenu.anchorheight : megamenu.offsety-megamenu.actualheight
	var menutop=megamenu.offsety+megamenu.anchorheight;  //get y coord of menu
	$menu.css({left:menuleft+"px", top:menutop+"px"});
	this.$shimobj.css({width:megamenu.actualwidth+"px", height:megamenu.actualheight+"px", left:menuleft+"px", top:menutop+"px", display:"block"});
},

showmenu:function(e, megamenu_pos){
	var megamenu=this.megamenus[megamenu_pos]
	var $menu=megamenu.$menuobj
	var $menuinner=megamenu.$menuinner
	if ($menu.css("display")=="none"){
		this.alignmenu(jQuery, e, megamenu_pos);
		$menu.css("z-index", ++this.zIndexVal);
		$menu.show(this.effectduration, function(){
			$menuinner.css('visibility', 'visible');
		});
	}
	else if ($menu.css("display")=="block" && e.type=="click"){ //if menu is hidden and this is a "click" event (versus "mouseout")
		this.hidemenu(e, megamenu_pos);
	}
	return false;
},

hidemenu:function(e, megamenu_pos){
	var megamenu=this.megamenus[megamenu_pos];
	var $menu=megamenu.$menuobj;
	var $menuinner=megamenu.$menuinner;
	$menuinner.css('visibility', 'hidden');
	this.$shimobj.css({display:"none", left:0, top:0});
	$menu.hide(this.effectduration);
},

definemenu:function(anchorid, menuid, revealtype){
	this.megamenulabels.push([anchorid, menuid, revealtype]);
},

render:function($){
	for (var i=0, labels=this.megamenulabels[i]; i<this.megamenulabels.length; i++, labels=this.megamenulabels[i]){
		if ($('#'+labels[0]).length!=1 || $('#'+labels[1]).length!=1) //if one of the two elements are NOT defined, exist
			return;
		this.megamenus.push({$anchorobj:$("#"+labels[0]), $menuobj:$("#"+labels[1]), $menuinner:$("#"+labels[1]).children('ul:first-child'), revealtype:labels[2], hidetimer:null});
		var megamenu=this.megamenus[i];	
		megamenu.$anchorobj.add(megamenu.$menuobj).attr("_megamenupos", i+"pos"); //remember index of this drop down menu
		megamenu.actualwidth=megamenu.$menuobj.outerWidth();
		megamenu.actualheight=megamenu.$menuobj.outerHeight();
		megamenu.offsetx=megamenu.$anchorobj.offset().left;
		megamenu.offsety=megamenu.$anchorobj.offset().top;
		megamenu.anchorwidth=megamenu.$anchorobj.outerWidth();
		megamenu.anchorheight=megamenu.$anchorobj.outerHeight();
		$(document.body).append(megamenu.$menuobj); //move drop down menu to end of document
		megamenu.$menuobj.css("z-index", ++this.zIndexVal).hide();
		megamenu.$menuinner.css("visibility", "hidden");
		megamenu.$anchorobj.bind(megamenu.revealtype=="click"? "click" : "mouseenter", function(e){
			var menuinfo=jkmegamenu.megamenus[parseInt(this.getAttribute("_megamenupos"))];
			clearTimeout(menuinfo.hidetimer); //cancel hide menu timer
			return jkmegamenu.showmenu(e, parseInt(this.getAttribute("_megamenupos")));
		});
		megamenu.$anchorobj.bind("mouseleave", function(e){
			var menuinfo=jkmegamenu.megamenus[parseInt(this.getAttribute("_megamenupos"))];
			if (e.relatedTarget!=menuinfo.$menuobj.get(0) && $(e.relatedTarget).parents("#"+menuinfo.$menuobj.get(0).id).length==0){ //check that mouse hasn't moved into menu object
				menuinfo.hidetimer=setTimeout(function(){ //add delay before hiding menu
					jkmegamenu.hidemenu(e, parseInt(menuinfo.$menuobj.get(0).getAttribute("_megamenupos")));
				}, jkmegamenu.delaytimer);
			}
		});
		megamenu.$menuobj.bind("mouseenter", function(e){
			var menuinfo=jkmegamenu.megamenus[parseInt(this.getAttribute("_megamenupos"))];
			clearTimeout(menuinfo.hidetimer); //cancel hide menu timer
		});
		megamenu.$menuobj.bind("click mouseleave", function(e){
			var menuinfo=jkmegamenu.megamenus[parseInt(this.getAttribute("_megamenupos"))];
			menuinfo.hidetimer=setTimeout(function(){ //add delay before hiding menu
				jkmegamenu.hidemenu(e, parseInt(menuinfo.$menuobj.get(0).getAttribute("_megamenupos")));
			}, jkmegamenu.delaytimer);
		});
	} //end for loop
	if(/Safari/i.test(navigator.userAgent)){ //if Safari
		$(window).bind("resize load", function(){
			for (var i=0; i<jkmegamenu.megamenus.length; i++){
				var megamenu=jkmegamenu.megamenus[i];
				var $anchorisimg=(megamenu.$anchorobj.children().length==1 && megamenu.$anchorobj.children().eq(0).is('img'))? megamenu.$anchorobj.children().eq(0) : null;
				if ($anchorisimg){ //if anchor is an image link, get offsets and dimensions of image itself, instead of parent A
					megamenu.offsetx=$anchorisimg.offset().left;
					megamenu.offsety=$anchorisimg.offset().top;
					megamenu.anchorwidth=$anchorisimg.width();
					megamenu.anchorheight=$anchorisimg.height();
				}
			}
		});
	}
	else{
		$(window).bind("resize", function(){
			for (var i=0; i<jkmegamenu.megamenus.length; i++){
				var megamenu=jkmegamenu.megamenus[i];	
				megamenu.offsetx=megamenu.$anchorobj.offset().left;
				megamenu.offsety=megamenu.$anchorobj.offset().top;
			}
		});
	}
	jkmegamenu.addshim($);
}

}