<!--
image1= new Image();
image1.src = "images/tnav_info_tel01.gif";
image2= new Image();
image2.src = "images/tnav_info_tel02.gif";
image3= new Image();
image3.src = "images/tnav_info_tel03.gif";
image4= new Image();
image4.src = "images/tnav_info_tel04.gif";


function img_change(){
var img_No = document.form.sel_img.selectedIndex + 1;
fname = eval("image" + img_No + ".src")
document.sel_img.src = fname
}
//-->

/* プルダウンを初期値に戻す */
function resetPullDown(){
        document.forms["form"].elements["sel_img"].selectedIndex=0;
    }