var menuTimeout;


$(document).ready(function() {	
	$("#topMenu li ul").css({opacity:0.9});
	
	topmenuShow();	
	
	$("#topMenu li,#topMenu li").bind("mouseleave",function(e){	
		$(this).children("ul").fadeOut("fast");
		clearTimeout(menuTimeout);
	})	
})

function topmenuShow() {
	$("#topMenu li").bind("mouseenter",function(e){			
			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})			
			
			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", width:this._dimensions.subulw+'px'});
			
			var myThis=this;
			
			clearTimeout(menuTimeout);
			menuTimeout = setTimeout(function(){
				$(myThis).children("ul").slideDown(400);	
			},300);
	});	
}