if(document.images){
var img = new Array();
	img[0] = new Image(); img[0].src = "./common/img/bt_global_01_off.gif";
	img[1] = new Image(); img[1].src = "./common/img/bt_global_01_on.gif";
	img[2] = new Image(); img[2].src = "./common/img/bt_global_02_off.gif";
	img[3] = new Image(); img[3].src = "./common/img/bt_global_02_on.gif";
	img[4] = new Image(); img[4].src = "./common/img/bt_global_03_off.gif";
	img[5] = new Image(); img[5].src = "./common/img/bt_global_03_on.gif";
	img[6] = new Image(); img[6].src = "./common/img/bt_global_04_off.gif";
	img[7] = new Image(); img[7].src = "./common/img/bt_global_04_on.gif";
	img[8] = new Image(); img[8].src = "./common/img/bt_global_05_off.gif";
	img[9] = new Image(); img[9].src = "./common/img/bt_global_05_on.gif";
	img[10] = new Image(); img[10].src = "./common/img/bt_global_06_off.gif";
	img[11] = new Image(); img[11].src = "./common/img/bt_global_06_on.gif";
	img[12] = new Image(); img[12].src = "./common/img/bt_entry_01_off.gif";
	img[13] = new Image(); img[13].src = "./common/img/bt_entry_01_on.gif";
	img[14] = new Image(); img[14].src = "./common/img/bt_entry_02_off.gif";
	img[15] = new Image(); img[15].src = "./common/img/bt_entry_02_on.gif";
	img[16] = new Image(); img[16].src = "./common/img/bt_question_off.gif";
	img[17] = new Image(); img[17].src = "./common/img/bt_question_on.gif";
	img[18] = new Image(); img[18].src = "./common/img/bt_question_02_off.gif";
	img[19] = new Image(); img[19].src = "./common/img/bt_question_02_on.gif";
	img[20] = new Image(); img[20].src = "./common/img/bt_all_off.gif";
	img[21] = new Image(); img[21].src = "./common/img/bt_all_on.gif";
	img[22] = new Image(); img[22].src = "./common/img/main_ph01_off.jpg";
	img[23] = new Image(); img[23].src = "./common/img/main_ph01_on.jpg";
	img[24] = new Image(); img[24].src = "./common/img/main_ph02_off.jpg";
	img[25] = new Image(); img[25].src = "./common/img/main_ph02_on.jpg";
	img[26] = new Image(); img[26].src = "./common/img/main_ph03_off.jpg";
	img[27] = new Image(); img[27].src = "./common/img/main_ph03_on.jpg";
	
	img[28] = new Image(); img[28].src = "./common/shared_img/bt_pagetop_off.gif";
	img[29] = new Image(); img[29].src = "./common/shared_img/bt_pagetop_on.gif";
	img[30] = new Image(); img[30].src = "./img/bt_recruit_list_off.gif";
	img[31] = new Image(); img[31].src = "./img/bt_recruit_list_on.gif";
	img[32] = new Image(); img[32].src = "./img/bt_whatsnew_list_off.gif";
	img[33] = new Image(); img[33].src = "./img/bt_whatsnew_list_on.gif";
	img[34] = new Image(); img[34].src = "./img/main_recruit_bt_off.jpg";
	img[35] = new Image(); img[35].src = "./img/main_recruit_bt_on.jpg";
	img[36] = new Image(); img[36].src = "./img/main_service_bt01_off.jpg";
	img[37] = new Image(); img[37].src = "./img/main_service_bt01_on.jpg";
	img[38] = new Image(); img[38].src = "./img/main_service_bt02_off.jpg";
	img[39] = new Image(); img[39].src = "./img/main_service_bt02_on.jpg";

}