function check_epaper() {
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	if (document.epaper_form.epaper.value=="") {
		alert("請填入電子信箱");
		return false;
	} else if (document.epaper_form.epaper.value!="" && reg.test(document.epaper_form.epaper.value)==false){
		alert("電子信箱格式有誤");
		return false;
	} else {
		document.epaper_form.submit();
	}
}
function sub22() {
	if (document.search_form.keyword22.value=="") {
		alert("請填入關鍵字");
		return false;
	} else {
		document.search_form.submit();
	}
}
function check_message() {
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	var form22 = document.form22;

	if (form22.name2.value=="") {
		alert("請填入聯絡人");
		return false;
	} else if (form22.tel2.value=="") {
		alert("請填入電話");
		return false;
	} else if (form22.email2.value=="") {
		alert("請填入電子信箱");
		return false;
	} else if (form22.email2.value!="" && reg.test(form22.email2.value)==false){
		alert("電子信箱格式有誤");
		return false;
	} else {
		return true;
	}
}