<!--
var isChecked=parseInt(navigator.appVersion.substring(0,3))>=3 && document.images;
var isLoaded =false;

var imgNavi=new Array(2);
var ImgTemp;
var fnameTemp;
var imgArrowLeft, imgArrowRight;

function preload(){
  if(isChecked){    
    imgNavi[0]=new Image(); imgNavi[0].src="./images/arrowl_on.gif";
    imgNavi[1]=new Image(); imgNavi[1].src="./images/arrowr_on.gif";
    
    isLoaded=true;
  }
}

function changeImage(number,img){
  if(isLoaded){
    imgTemp=img;
    fnameTemp=img.src;
    img.src=imgNavi[number].src;
  }
}

function restoreImage(){
  if(isLoaded && typeof(imgTemp)!="undefined" && typeof(fnameTemp)!="undefined"){
    imgTemp.src=fnameTemp;
  }
}
//-->