(function() {
	"use strict";
	
	l(".kaihei_btn").kaihei(".kaihei_target", {open_class: "kai"});

	
	
	
	
	
	window.addEventListener("load", function(){
		l("#sec1").css("height", $(window).height() + "px");
	});
	
	window.addEventListener("scroll", scroll_func);
	scroll_func();
	
	function scroll_func(){
		if(window.pageYOffset > 30){
			document.getElementById("header").classList.add("mode2");
		}else{
			document.getElementById("header").classList.remove("mode2");
		};
	}
}());