function changeImage1(){
	document.aimg.src="../images/img2_01.jpg";
}
function changeImage2(){
	document.aimg.src="../images/img_01.jpg";
}
function changeImage3(){
	document.bimg.src="../images/img2_02.jpg";
}
function changeImage4(){
	document.bimg.src="../images/img_02.jpg";
}
function changeImage5(){
	document.cimg.src="../images/img2_03.jpg";
}
function changeImage6(){
	document.cimg.src="../images/img_03.jpg";
}
function changeImage7(){
	document.dimg.src="images/img2_04.jpg";
}
function changeImage8(){
	document.dimg.src="images/img_04.jpg";
}
function changeImage9(){
	document.eimg.src="images/img2_05.jpg";
}
function changeImage10(){
	document.eimg.src="images/img_05.jpg";
}
function changeImage11(){
	document.fimg.src="images/img2_06.jpg";
}
function changeImage12(){
	document.fimg.src="images/img_06.jpg";
}

// オンマウスで透明度を変更する
function chAlp(img, alpha) {
  document.images[img].filters['alpha'].opacity = alpha;
}
//