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) { //v3.0
  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); 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 MM_jumpMenu(targ,selObj,restore){ //v3.0
  if(selObj.options[selObj.selectedIndex].value == "") return;
  window.open(selObj.options[selObj.selectedIndex].value, targ);
  if (restore) selObj.selectedIndex=0;
}

function doSubmit() {
	var notice = $('page_rate_notice');
	var form = $('page_rate');
	var e = false;
	var u = Form.serialize($('page_rate')).toQueryParams()['useful'];

	if (u != '1' && u != '0') {
	   	notice.update('「はい」「いいえ」のいずれかを選択してください。');
		e = true;
	}

	if (!$F('rid')) {
	   	notice.update('このページからは投稿できません。');
		form.style.display = 'none';
		e = true;
	}

	if ($F('message').length > 200) {
		notice.update('200文字以上は送信できません。');
		e = true;
	}

	if (e) {
	   	return false;
	}

	new Ajax.Request(
		'/cgi-bin/page-rating/index.cgi',
		{
			method: 'post',
			parameters: {
				rid: $F('rid'),
				type: $F('type'),
				useful: u,
				message: $F('message'),
				action: 'ajax'
			},
			onSuccess: function(transport) {
				$('page_rate_submit').disabled = true;

				notice.update(transport.responseText);

				if (transport.responseText.match(/ありがとうございました/)) {
				   	form.style.display = 'none';
				}
				else if (transport.responseText.match(/再度送信してください/)) {
					$('page_rate_submit').disabled = false;
				}
			}
		}
	);

	return false;
}