function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function otoiawasecheck() {
	if (document.forms[0].お名前.value.length == 0) {
		alert('お名前が未入力です。');
		return false;
	}
	if (document.forms[0].メール.value.length == 0) {
		alert('メールアドレスが未入力です。');
		return false;
	}
	ml = /.+@.+\..+/; // チェック方式
	mf = document.forms[0].メール.value;
	if(!mf.match(ml)) {
		alert("メールアドレスが不正です");
		return false;
 	}
	return true;
}

function ImgPreload()
{
  var appVer=parseInt(navigator.appVersion);
  var isNC=false,isN6=false,isIE=false;
  if (document.all && appVer >= 4) isIE=true; else
    if (document.getElementById && appVer > 4) isN6=true; else
      if (document.layers && appVer >= 4) isNC=true;
  if (isNC||isN6||isIE)
  {
    if (document.images)
    {
      var imgName = ImgPreload.arguments[0];
      var cnt;
      swImg[imgName] = new Array;
      for (cnt = 1; cnt < ImgPreload.arguments.length; cnt++)
      {
        swImg[imgName][ImgPreload.arguments[cnt]] = new Image();
        swImg[imgName][ImgPreload.arguments[cnt]].src = ImgPreload.arguments[cnt];
      }
    }
  }
}

function ImgFind(doc, imgName)
{
  for (var i=0; i < doc.layers.length; i++)
  {
    var img = doc.layers[i].document.images[imgName];
    if (!img) img = ImgFind(doc.layers[i], imgName);
    if (img) return img;
  }
  return null;
}

function ImgSwap(imgName, imgSrc)
{
  var appVer=parseInt(navigator.appVersion);
  var isNC=false,isN6=false,isIE=false;
  if (document.all && appVer >= 4) isIE=true; else
    if (document.getElementById && appVer > 4) isN6=true; else
      if (document.layers && appVer >= 4) isNC=true;
  if (isNC||isN6||isIE)
  {
    if (document.images)
    {
      var img = document.images[imgName];
      if (!img) img = ImgFind(document, imgName);
      if (img) img.src = imgSrc;
    }
  }
}
var swImg; swImg=new Array;

ImgPreload('_ROLLOVER2', 'hpimage/btn_menu02.gif', 'hpimage/btn_menu02s.gif');
ImgPreload('_ROLLOVER1', 'hpimage/btn_menu01.gif', 'hpimage/btn_menu01s.gif');
ImgPreload('_ROLLOVER3', 'hpimage/btn_menu03.gif', 'hpimage/btn_menu03s.gif');
ImgPreload('_ROLLOVER4', 'hpimage/btn_menu04.gif', 'hpimage/btn_menu04s.gif');
ImgPreload('_ROLLOVER5', 'hpimage/btn_menu05.gif', 'hpimage/btn_menu05s.gif');