if(WinIE || MacIE || WinNN4 || WinNN6 || MacNN4 || MacNN6){
var imgen = new Array();
	imgen[0] = new Image(); imgen[0].src = "./common/img/bt_head_01_off.gif";
	imgen[1] = new Image(); imgen[1].src = "./common/img/bt_head_01_on.gif";
	imgen[2] = new Image(); imgen[2].src = "./common/img/bt_head_02_off.gif";
	imgen[3] = new Image(); imgen[3].src = "./common/img/bt_head_02_on.gif";
	imgen[4] = new Image(); imgen[4].src = "./common/img/bt_head_03_off.gif";
	imgen[5] = new Image(); imgen[5].src = "./common/img/bt_head_03_on.gif";
	imgen[6] = new Image(); imgen[6].src = "./common/img/bt_head_jp_off.gif";
	imgen[7] = new Image(); imgen[7].src = "./common/img/bt_head_jp_on.gif";

}



/* products swap image set */
if(navigator.appVersion.charAt(0) >= "3"){
var proimgen = new Array();
//products swap image set
	proimgen[0] = new Image(); proimgen[0].src = "./common/img/bt_pronavi_01_off.gif";
	proimgen[1] = new Image(); proimgen[1].src = "./common/img/bt_pronavi_01_on.gif";
	proimgen[2] = new Image(); proimgen[2].src = "./common/img/bt_pronavi_02_off.gif";
	proimgen[3] = new Image(); proimgen[3].src = "./common/img/bt_pronavi_02_on.gif";
	proimgen[4] = new Image(); proimgen[4].src = "./common/img/bt_pronavi_03_off.gif";
	proimgen[5] = new Image(); proimgen[5].src = "./common/img/bt_pronavi_03_on.gif";
	proimgen[6] = new Image(); proimgen[6].src = "./common/img/bt_pronavi_04_off.gif";
	proimgen[7] = new Image(); proimgen[7].src = "./common/img/bt_pronavi_04_on.gif";
	proimgen[8] = new Image(); proimgen[8].src = "./common/img/bt_pronavi_05_off.gif";
	proimgen[9] = new Image(); proimgen[9].src = "./common/img/bt_pronavi_05_on.gif";
	proimgen[10] = new Image(); proimgen[10].src = "./common/img/bt_pronavi_06_off.gif";
	proimgen[11] = new Image(); proimgen[11].src = "./common/img/bt_pronavi_06_on.gif";
	proimgen[12] = new Image(); proimgen[12].src = "./common/img/bt_pronavi_07_off.gif";
	proimgen[13] = new Image(); proimgen[13].src = "./common/img/bt_pronavi_07_on.gif";
	proimgen[14] = new Image(); proimgen[14].src = "./common/img/bt_pronavi_08_off.gif";
	proimgen[15] = new Image(); proimgen[15].src = "./common/img/bt_pronavi_08_on.gif";
	proimgen[16] = new Image(); proimgen[16].src = "./common/img/bt_pronavi_09_off.gif";
	proimgen[17] = new Image(); proimgen[17].src = "./common/img/bt_pronavi_09_on.gif";
	proimgen[18] = new Image(); proimgen[18].src = "./common/img/bt_commerce_off.jpg";
	proimgen[19] = new Image(); proimgen[19].src = "./common/img/bt_commerce_on.jpg";
	proimgen[20] = new Image(); proimgen[20].src = "./common/img/bt_pronavi_10_off.gif";
	proimgen[21] = new Image(); proimgen[21].src = "./common/img/bt_pronavi_10_on.gif";
	proimgen[22] = new Image(); proimgen[22].src = "./common/img/bt_pronavi_11_off.gif";
	proimgen[23] = new Image(); proimgen[23].src = "./common/img/bt_pronavi_11_on.gif";
	proimgen[24] = new Image(); proimgen[24].src = "./common/img/bt_pronavi_12_off.gif";
	proimgen[25] = new Image(); proimgen[25].src = "./common/img/bt_pronavi_12_on.gif";
}