var imageDir='../img/';
var imageGif='.gif';
var preImage=new Array();
var loadfinish=false;
var preloadimagelist=new Array('btn_info','btn_infoo','btn_paloma','btn_palomao','btn_menu','btn_menuo','btn_bbs','btn_bbso','btn_present','btn_presento','btm_home','btm_homeo','colum_img01','colum_img01o','colum_img02','colum_img02o','name_00','name_01','name_02');
function preloadImage(){
if (navigator.appVersion.charAt(0)>=4){
for(i=0;i<preloadimagelist.length;i++){
preImage[i]=new Image();
preImage[i].src=imageDir+preloadimagelist[i]+imageGif;
      }
}
loadfinish=true;
}
function imgChg(imageName,i){
       if(navigator.appVersion.charAt(0) >= 4  && loadfinish == true){
      document.images[imageName].src=preImage[i].src;
              }
        }
function init(){
preloadImage();
}