(function($){
	$(function(){

		$(".main_text img").animate({opacity: "1.0"}, 300);

		var host_url = "/bizdemo11252/";
		$("li.menu_sub ul").hide();
		$("li.menu_sub").hover(function(){
			var num = $(".main_img img", this).attr("data");
			var img_url = host_url + "/img/main/menu_on_" + num + ".gif";
			$(".main_img img", this).attr("src", img_url);
			$("ul", this).show();
			},function(){
			var num = $(".main_img img", this).attr("data");
			var img_url = host_url + "/img/main/menu_" + num + ".gif";
			$(".main_img img", this).attr("src", img_url);
			$("ul", this).hide();
		});

		$(".sub_img").hover(function(){
			var num1 = $(this).attr("data");
			var num2 = $("img", this).attr("data");
			var img_url = host_url + "/img/main/submenu" + num1 + "_on_" + num2 + ".gif";
			$("img", this).attr("src", img_url);

			},function(){
			var num1 = $(this).attr("data");
			var num2 = $("img", this).attr("data");
			var img_url = host_url + "/img/main/submenu" + num1 + "_" + num2 + ".gif";
			$("img", this).attr("src", img_url);

		});
	});
})(jQuery);