/*********************
//* jQuery Multi Level CSS Menu #2- By Dynamic Drive: http://www.dynamicdrive.com/
//* Last update: Nov 7th, 08': Limit # of queued animations to minmize animation stuttering
//* Menu avaiable at DD CSS Library: http://www.dynamicdrive.com/style/
*********************/

//Specify full URL to down and right arrow images (23 is padding-right to add to top level LIs with drop downs):
var arrowimages={down:['downarrowclass', '../images/layout/arrow_down.png', 23], right:['rightarrowclass', '../images/layout/arrow_right.png']}

var jqueryslidemenu={

animateduration: {over: 0, out: 0}, //duration of slide in/ out animation, in milliseconds

buildmenu:function(menuid, arrowsvar){
	jQuery(document).ready(function($){
		var $mainmenu=$("#"+menuid+">ul")
		var $headers=$mainmenu.find("ul").parent()
		$headers.each(function(i){
			var $curobj=$(this)
			var $subul=$(this).find('ul:eq(0)')
			this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()}
			this.istopheader=$curobj.parents("ul").length==1? true : false
                        $subul.css({top:this.istopheader? 32 +"px" : 0})
//			$subul.css({top:this.istopheader? this._dimensions.h +"px" : 0})

			$curobj.hover(
				function(e){
				        if (this.istopheader) {
					  var $navId = $(this).find("img:first").attr('id');
					  var $activeNavImage = 'images/layout/' + $navId + '_active.png';
					  $(this).find("img:first").attr('src', $activeNavImage);
 					}
					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>$(window).width())? (this.istopheader? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft
					if ($targetul.queue().length<=1) { //if 1 or less queued animations
                                          if (this.istopheader) {
                                            var $navId = $(this).find("img:first").attr('id');
                                            var $activeNavImage = 'images/layout/' + $navId + '_active.png';
                                            $(this).find("img:first").attr('src', $activeNavImage);
                                          }

					  $targetul.css({left:menuleft+"px", width:this._dimensions.subulw+'px'}).slideDown(jqueryslidemenu.animateduration.over)
					}
				},
				function(e){
                                        if (this.istopheader) {
					  var $navId = $(this).find("img:first").attr('id');
                                          var $inactiveNavImage = 'images/layout/' + $navId + '.png';
                                          $(this).find("img:first").attr('src', $inactiveNavImage);
                                        }
					var $targetul=$(this).children("ul:eq(0)")
					$targetul.slideUp(jqueryslidemenu.animateduration.out)
				}
			) //end hover
		}) //end $headers.each()
		$mainmenu.find("ul").css({display:'none', visibility:'visible'})
                $mainmenu.find("div").css({display:'none', visibility:'visible'})

	}) //end document.ready
}
}

//build menu with ID="mainNav" on page:
jqueryslidemenu.buildmenu("mainNav", arrowimages)