function chk_submit(selObj){

  var about   = selObj.about.options[selObj.about.selectedIndex].value;
  var email   = selObj.email.value;
  var comment = selObj.comment.value;

	if( about == '' ){
		alert('お問合せの種類が選択されていません。');
		return false;
	}else if( email == '' ){
		alert('E-mailが入力されていません。');
		return false;
	}else if( ! email.match(/^[^@]{1,}@.{1,}\..{1,}$/)){
		alert('E-mailの入力が間違っています。');
		return false;
	}else if( comment == '' ){
		alert('お問い合わせ内容が入力されていません。');
		return false;
	}

	return true;

}

/*  rollOver and rollOut Images  */

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;

function preloadImages() {
    for(cnt=0;cnt<document.images.length;cnt++){
        if( document.images[cnt].complete==false ){
            document.images[cnt].src = document.images[cnt].src;
        }
    }
}
var preloadFlag = false;
function preloadImages2() {
	if (document.images) {
		sample_btn_over = newImage("images/sample_btn_over.gif");
		go_btn_over = newImage("images/go_btn_over.gif");
		dl_btn_over = newImage("images/dl_btn_over.gif");
		post_btn_over = newImage("images/post_btn_over.gif");
		ftr_memberhip_over = newImage("images/ftr_membership_over.gif");
		ftr_links_over = newImage("images/ftr_links_over.gif");
		ftr_affiliate_over = newImage("images/ftr_affiliate_over.gif");
		ftr_home_over = newImage ("images/ftr_home_over.gif");
		ftr_movie_over = newImage ("images/ftr_movie_over.gif");
		ftr_sitemap_over = newImage ("images/ftr_sitemap_over.gif");
		preloadFlag = true;
	}
}

var faqNum = 12;

/* for FAQ main only */
function preloadFaqImages() {
	if (document.images) {
		for (var i=1; i<=faqNum; i++) {
			if (i<10) {
				i += "0";
			}
			var imgName = "faq_" + i + "_over";
			var imgSrc = "images/" + imgName + ".gif";
			imgName = newImage (imgSrc);
		}
		preloadImages();
	}
}

/* for Sign-up page only */
function preloadSignupImage () {
	if (document.images) {
		sign_up_btn_over = newImage("imaegs/sign_up_btn_over.gif");
		preloadFlag = true;
	}
	preloadImages();
}

function navi(obj){
    url = obj.options[obj.selectedIndex].value;
    if(url != "") {
/*        parent.jj.location.href = url; */
document.form1.submit();
/*        alert(url);        */
    }
}

function zero_address(obj){ 
	s1="info"; 
	s2="@"; 
	s3="zero"; 
	s4="-"; 
	s5="animation"; 
	s6="."; 
	s7="net"; 
	obj.href="mailto:"+s1+s2+s3+s4+s5+s6+s7;
}