//共有画像へのパス

var imgpath = "images/";


//画像の先読み込み

data = new Array(
        imgpath + "contact_btn_ov.gif",
        imgpath + "ft_contact_btn_ov.gif",
        imgpath + "feature_s_btn01_ov.gif",
        imgpath + "feature_s_btn02_ov.gif",
        imgpath + "feature_s_btn03_ov.gif",
        imgpath + "feature_s_btn04_ov.gif",
        imgpath + "feature_s_btn05_ov.gif",
        imgpath + "feature_s_btn06_ov.gif",
        imgpath + "feature_s_btn07_ov.gif"
);

preimg = new Array();

for (i=0; i<data.length; i++) {
        preimg[i] = new Image();
        preimg[i].src = data[i];
}


//画像の差し替え

function swImg(iName,str){
        document.images[iName].src = imgpath + str;
}

function swImg0(iName,str){
        document.images[iName].src = str;
}