$(document).ready(function(){
	var menuFlg = "close";
	$("#menu-btn").click(function(){
		var btn = this;
		if(menuFlg == "close"){
			$("#menu").animate({
			
				left: "0px"
			
			}, "normal" , function(){
			
				menuFlg = "open";
				btn.src = btn.src.replace("_f1","_f2");
			
			});
		}
		else{
			$("#menu").animate({
			
				left : "676px"
			
			}, "normal",function(){
			
				menuFlg = "close";
				btn.src = btn.src.replace("_f2","_f1");
			
			});
		}

	});
	var menuCurrent = 2;
	$("#menu li img").each(function(index,item){
		if(index == menuCurrent) return;
		$(item).mouseover(function(){
			this.src = this.src.replace("_f1","_f2");
		});
		$(item).mouseout(function(){
			this.src = this.src.replace("_f2","_f1");
		});
	});
});