if (document.images) {
	//header
	// feature
	var feature00 = new Image();
	feature00.src = "img/main_feature00.jpg";
	var feature01 = new Image();
	feature01.src = "img/main_feature01.jpg";

	// procedure
	var procedure00 = new Image();
	procedure00.src = "img/main_procedure00.jpg";
	var procedure01 = new Image();
	procedure01.src = "img/main_procedure01.jpg";

	// motion
	var motion00 = new Image();
	motion00.src = "img/main_motion00.jpg";
	var motion01 = new Image();
	motion01.src = "img/main_motion01.jpg";

	// result
	var result00 = new Image();
	result00.src = "img/main_result00.jpg";
	var result01 = new Image();
	result01.src = "img/main_result01.jpg";

	// access
	var access00 = new Image();
	access00.src = "img/main_access00.jpg";
	var access01 = new Image();
	access01.src = "img/main_access01.jpg";

	//rightBar
	//inquire
	var inquire00 = new Image();
	inquire00.src = "img/btn_inquire00.jpg";
	var inquire01 = new Image();
	inquire01.src = "img/btn_inquire01.jpg";

	//estimate
	var estimate00 = new Image();
	estimate00.src = "img/btn_estimate00.jpg";
	var estimate01 = new Image();
	estimate01.src = "img/btn_estimate01.jpg";
}

function On(name) {

	if (document.images) {
		document.images[name].src = eval(name + '01.src');
	}

}

// 放した時の処理
function Off(name) {

	if (document.images) {
		document.images[name].src = eval(name + '00.src');
	}

}