if(navigator.appVersion.charAt(0) >= 3){
var img = new Array();
img[0]=new Image();img[0].src = "images/bt_01.gif";
img[1]=new Image();img[1].src = "images/bt_02.gif";
img[2]=new Image();img[2].src = "images/bt_03.gif";
img[3]=new Image();img[3].src = "images/bt_04.gif";
img[4]=new Image();img[4].src = "images/bt_access_03.gif";
img[5]=new Image();img[5].src = "images/bt_access_03_ro.gif";
img[6]=new Image();img[6].src = "images/bt_reserve.gif";
img[7]=new Image();img[7].src = "images/bt_reserve_ro.gif";
img[8]=new Image();img[8].src = "images/bt_access_01.gif";
img[9]=new Image();img[9].src = "images/bt_access_01_ro.gif";
img[10]=new Image();img[10].src = "images/bt_access_02.gif";
img[11]=new Image();img[11].src = "images/bt_access_02_ro.gif";
img[12]=new Image();img[12].src = "images/bt_23.gif";
img[13]=new Image();img[13].src = "images/bt_24.gif";
img[14]=new Image();img[14].src = "images/bt_25.gif";
img[15]=new Image();img[15].src = "images/bt_26.gif";

img[16]=new Image();img[16].src = "images/bt_main_01.gif";
img[17]=new Image();img[17].src = "images/bt_main_01_ro.gif";
img[18]=new Image();img[18].src = "images/bt_main_02.gif";
img[19]=new Image();img[19].src = "images/bt_main_02_ro.gif";
img[20]=new Image();img[20].src = "images/bt_main_03.gif";
img[21]=new Image();img[21].src = "images/bt_main_03_ro.gif";
img[22]=new Image();img[22].src = "images/bt_main_04.gif";
img[23]=new Image();img[23].src = "images/bt_main_04_ro.gif";

img[24]=new Image();img[24].src = "images/bt_main_05.gif";
img[25]=new Image();img[25].src = "images/bt_main_05_ro.gif";
img[26]=new Image();img[26].src = "images/bt_main_06.gif";
img[27]=new Image();img[27].src = "images/bt_main_06_ro.gif";
img[28]=new Image();img[28].src = "images/bt_main_07.gif";
img[29]=new Image();img[29].src = "images/bt_main_07_ro.gif";
img[30]=new Image();img[30].src = "images/bt_main_08.gif";
img[31]=new Image();img[31].src = "images/bt_main_08_ro.gif";
}
function change_image(nam,num){
if(navigator.appVersion.charAt(0) >= 3){
document.images[nam].src = img[num].src;
}
}