var preLoadFlag = "false";

function preLoadImg(URL){

arrImgList = new Array (
URL+"img/header/basis_on.jpg",URL+"img/header/product_on.png",URL+"img/header/customer_on.png",URL+"img/header/order_on.jpg",
URL+"img/header/sales_on.jpg",URL+"img/header/mail_on.jpg",URL+"img/header/contents_on.jpg",
URL+"img/header/mainpage_on.gif",URL+"img/header/sitecheck_on.gif",URL+"img/header/logout.gif",
URL+"img/contents/btn_search_on.jpg",URL+"img/contents/btn_regist_on.jpg",
URL+"img/contents/btn_csv_on.jpg",URL+"img/contents/arrow_left.jpg",URL+"img/contents/arrow_right.jpg"
);

arrPreLoad = new Array();
for (i in arrImgList) {
arrPreLoad[i] = new Image();
arrPreLoad[i].src = arrImgList[i];
}
preLoadFlag = "true";
}

function chgImg(fileName,imgName){
if (preLoadFlag == "true") {
document.images[imgName].src = fileName;
}
}

function chgImgImageSubmit(fileName,imgObj){
imgObj.src = fileName;
}

// サブナビの表示切替
function naviStyleChange(ids, bcColor, color){
document.getElementById(ids).style.backgroundColor = bcColor;
}