var script={

animateduration: {over: 10, out: 10},

menu: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={h:$curobj.find('a:eq(0)').outerHeight()}
			this.istopheader=$curobj.parents("ul").length==1? true : false
			if (!this.istopheader)
				$subul.css({left:0, top:this._dimensions.h})
			var $innerheader=$curobj.children('a').eq(0)
			$innerheader=($innerheader.children().eq(0).is('span'))? $innerheader.children().eq(0) : $innerheader 
			
			$curobj.hover(
				function(e){
					var $targetul=$(this).children("ul:eq(0)")
					if ($targetul.queue().length<=1) 
						if (this.istopheader)
							$targetul.css({left: $mainmenu.offset().left, top: $mainmenu.offset().top+this._dimensions.h})
						if (document.all && !window.XMLHttpRequest) 
							$mainmenu.find('ul').css({ overflow: (this.istopheader)? 'hidden' : 'visible'})
						$targetul.slideDown(script.animateduration.over)
				},
				function(e){
					var $targetul=$(this).children("ul:eq(0)")
					$targetul.slideUp(script.animateduration.out)
				}
			)
		}) 
		$mainmenu.find("ul").css({ display:'none', visibility:'visible', width:$mainmenu.width()})
	}) 
}
}
script.menu("navigationmenu");