function Change_img(total, category, My_width, My_height, My_alt){
	if(category){
		if(! total) total = 1;
		if(! My_width) My_width = 100;
		if(! My_height) My_height = 100;
		if(! My_alt) My_alt = "";
		var path = "/about/division/image/photo_";
		var img_Num = Math.floor(Math.random() * total + 1);
		if(img_Num < 10) img_Num = "0" + img_Num;
		var img_Name = path + category +"_01_" + img_Num + ".jpg";
		var My_img = '\<img src="' + img_Name + '" width="' + My_width + '" height="' + My_height + '" alt="' + My_alt + '"\>\<br\>';
		document.write(My_img);
	}
}