var fimg=new Array();
fimg[0]=new Image();fimg[0].src="facilities_img/menu_01_default.gif";
fimg[1]=new Image();fimg[1].src="facilities_img/menu_01_over.gif";
fimg[2]=new Image();fimg[2].src="facilities_img/menu_02_default.gif";
fimg[3]=new Image();fimg[3].src="facilities_img/menu_02_over.gif";
fimg[4]=new Image();fimg[4].src="facilities_img/menu_03_default.gif";
fimg[5]=new Image();fimg[5].src="facilities_img/menu_03_over.gif";
fimg[6]=new Image();fimg[6].src="facilities_img/menu_04_default.gif";
fimg[7]=new Image();fimg[7].src="facilities_img/menu_04_over.gif";
fimg[8]=new Image();fimg[8].src="facilities_img/menu_05_default.gif";
fimg[9]=new Image();fimg[9].src="facilities_img/menu_05_over.gif";
fimg[10]=new Image();fimg[10].src="facilities_img/menu_06_default.gif";
fimg[11]=new Image();fimg[11].src="facilities_img/menu_06_over.gif";
fimg[12]=new Image();fimg[12].src="facilities_img/menu_07_default.gif";
fimg[13]=new Image();fimg[13].src="facilities_img/menu_07_over.gif";
fimg[14]=new Image();fimg[14].src="facilities_img/menu_08_default.gif";
fimg[15]=new Image();fimg[15].src="facilities_img/menu_08_over.gif";
fimg[16]=new Image();fimg[16].src="facilities_img/menu_09_default.gif";
fimg[17]=new Image();fimg[17].src="facilities_img/menu_09_over.gif";
fimg[18]=new Image();fimg[18].src="facilities_img/menu_10_default.gif";
fimg[19]=new Image();fimg[19].src="facilities_img/menu_10_over.gif";

//普通の。複数可。
function changebtn_02(name,a){
	document.images[name].src=fimg[a].src;
	return true;
}