var swImg;
var appVer = parseInt(navigator.appVersion);
var isIE = (document.all && appVer >= 4);
var isN6 = (document.getElementById && appVer > 4);
var isNC = (document.layers && appVer >= 4);

swImg = new Array();

function imagePreload() {
    if (!isNC && !isN6 && !isIE) return;
    if (!document.images) return;

    imgName = imagePreload.arguments[0];
    swImg[imgName] = new Array();

    for (var i = 1; i < imagePreload.arguments.length; i++) {
        swImg[ imgName ][ imagePreload.arguments[i] ] = new Image();
        swImg[ imgName ][ imagePreload.arguments[i] ].src = imagePreload.arguments[i];
    }
}

function imageFind(doc, imgName) {

    for (var i = 0; i < doc.layers.length; i++) {
        img = doc.layers[i].document.images[imgName];

        if (!img) {
            img = HpbImgFind(doc.layers[i], imgName);
        }else {
            return img;
        }
    }

    return null;
}

function imageSwap(imgName, imgSrc) {
    if (!isNC && !isN6 && !isIE) return;
    if (!document.images) return;

    img = document.images[imgName];

    if (!img) {
        img = imageFind(document, imgName);
    }else {
        img.src = imgSrc;
    }
}

function openwin(url) {
 w = window.open(url, 'win', 'width=600,height=500,status=no,scrollbars=yes,directories=no,menubar=no,resizable=no,toolbar=no' );
}

function confReset() {
  return confirm("入力した内容を破棄して初期状態に戻します。よろしいですか？");
}

var hasClicked = false;

function confSend() {
  if (!hasClicked) {
    if (confirm("入力した内容で送信します。よろしいですか？") ) {
      hasClicked = true;
      return true;
    }
  }
}