function CheckForm(){
	var error,msg,ret;

	error = "";
	msg = "-\n";

	if(document.form.ua.value == ""){
		error = "-\n";
	}else if(document.form.ua.value == "confirm" || document.form.ua.value == "edit_confirm"){
		if(document.form.request_name.value == ""){
			error=error+"Name is empty\n";
			MM_showHideLayers('name_empty','','show');
		}else{
			MM_showHideLayers('name_empty','','hide');
		}
		if(document.form.request_tel.value == ""){
			error=error+"Tel is empty\n";
			MM_showHideLayers('tel_empty','','show');
		}else{
			MM_showHideLayers('tel_empty','','hide');
		}
		if(document.form.request_mail.value == ""){
			error=error+"Mail is empty\n";
			MM_showHideLayers('mail_empty','','show');
		}else{
			document.form.request_mail.value=ConvertZ2H(document.form.request_mail.value);
			ret=CheckMailFormat(document.form.request_mail.value);
			if(ret == 1){
				MM_showHideLayers('mail_empty','','hide');
			}else{
				error=error+"Mail is invalid.\n";
				MM_showHideLayers('mail_empty','','show');
			}
		}
		/*
		alert(error);
		return false;
		*/
	}
	
	if(error != ""){
		msg = msg + error + "\n";
		// alert(msg);
		return false;
	}else{
		// document.form.Submit();
		return true;
	}
}