var jquerycssmenu={
	fadesettings: {overduration: 350, outduration: 100},	
	buildmenu:function(menuid){
		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+(-3)+"px" : 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				
			});
			$mainmenu.find("ul").css({display:'none', visibility:'visible'})			
		});
	}
}
jquerycssmenu.buildmenu("menu_topo")