
if (navigator.userAgent.indexOf("MSIE") != -1) {
var browserIsIE = true;
}

var ddsmoothmenu={

arrowimages: {down:['downarrowclass', 'images/blank.gif', 0], right:['rightarrowclass', 'images/blank.gif']},

transition: {overtime:300, outtime:300}, //duration of slide in/ out animation, in milliseconds
shadow: {enabled:true, offsetx:5, offsety:5},

buildmenu:function($){
	var smoothmenu=ddsmoothmenu
	var $mainmenu=$("#smoothmenu1 >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})
		$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			'<img src="'+ (this.istopheader? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			+'" class="' + (this.istopheader? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			+ '" style="border:0; display:none" />'
		)
		if (smoothmenu.shadow.enabled){
			this._shadowoffset={x:(this.istopheader?$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)")	
				if (browserIsIE) toggleSelects('hide');
				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)")
				$targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
					if (browserIsIE) toggleSelects('show');
				if (smoothmenu.shadow.enabled){
					if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						this.$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){
	
}

} //end ddsmoothmenu variable


function toggleSelects (state) {
var selects = document.getElementsByTagName("select");
for (var i = 0; i < selects.length; i++ ) {
selects[i].style.visibility = (state == "hide") ? 'hidden' : 'visible';
}
}

