img = new Array("../common/img_navi/01_home_o.gif","../common/img_navi/02_intro_o.gif","../common/img_navi/03_about.gif","../common/img_navi/04_designworks.gif","../common/img_navi/05_workstyle.gif","../common/img_navi/06_source.gif","../common/img_navi/07_activity.gif","../common/img_navi/08_distribution.gif");
bfImg = new Array();
for(i=0; i<img.length; i++) {
	bfImg[i] = new Image();
	bfImg[i].src = img[i];
}