/*********************
//* jQuery Multi Level CSS Menu (horizontal)- By Dynamic Drive DHTML code library: http://www.dynamicdrive.com
//* Menu instructions page: http://www.dynamicdrive.com/dynamicindex1/ddlevelsmenu/
//* Last modified: Sept 6th, 08'. Usage Terms: http://www.dynamicdrive.com/style/csslibrary/tos/
*********************/

//Specify full URL to down and right arrow images (25 is padding-right to add to top level LIs with drop downs):
var arrowimages = { down: ['downarrowclass', 'Themes/Museum/arrow-down.gif', 25], right: ['rightarrowclass', 'Themes/Museum/arrow-right.gif'] };
var jquerycssmenu={

fadesettings: {overduration: 350, outduration: 100}, //duration of fade 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? this._dimensions.h+"px" : 0});
	        $curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: arrowsvar.down[2]} : {}).append(
				'<img src="'+ (this.istopheader? arrowsvar.down[1] : arrowsvar.right[1])
				+'" class="' + (this.istopheader? arrowsvar.down[0] : arrowsvar.right[0])
				+ '" style="border:0;" />'
			);
	        $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;
				    $targetul.css({left:menuleft+"px"}).fadeIn(jquerycssmenu.fadesettings.overduration);
				},
				function(e){
					$(this).children("ul:eq(0)").fadeOut(jquerycssmenu.fadesettings.outduration);
				}
			); //end hover
		}); //end $headers.each()
		$mainmenu.find("ul").css({display:'none', visibility:'visible'});
	}); //end document.ready
}
};
//build menu with ID="myjquerymenu" on page:
jquerycssmenu.buildmenu("myjquerymenu", arrowimages);