function OnSelectMailDomain(form) //도메인 입력 방식 (form)=폼이름
{
	var f = document.forms[0];
	var frm = eval("document."+form);
	if ( f.selEmail.selectedIndex == 19 || f.selEmail.value == 'self' ) 
	{
		f.txtEmail2.value = frm.txtEmail2.value;	
		document.getElementById("email2view").style.display = '';
		frm.hdnEmail.value = frm.txtEmail1.value+"@"+frm.txtEmail2.value;
	}
	else
	{
		document.getElementById("email2view").style.display = 'none';
		frm.hdnEmail.value = frm.txtEmail1.value+"@"+frm.selEmail.value;
	}
}

function OnInputMailDomain(form)	//도메인 직접입력 (form)=폼이름
{
	var frm = eval("document."+form);
	frm.hdnEmail.value = frm.txtEmail1.value+"@"+frm.txtEmail2.value;	
}


function isEmail(str) {
	var emailStr = str.toLowerCase();
	var checkTLD=1;
	var knownDomsPat = /^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat = /^(.+)@(.+)$/;
	var specialChars = "\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	var validChars = "\[^\\s" + specialChars + "\]";
	var quotedUser = "(\"[^\"]*\")";
	var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom = validChars + '+';
	var word = "(" + atom + "|" + quotedUser + ")";
	var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat = new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray = emailStr.match(emailPat);

	if (matchArray == null) {
		alert("이메일 형식에 맞게 입력하세요.");
		return false;
	}
	var user = matchArray[1];
	var domain = matchArray[2];
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
			alert("영문만 '@', '.'만 입력이 가능합니다.");
			return false;
		 }
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
			alert("이메일을 확인 하세요.");
			return false;
		 }
	}

	if (user.match(userPat) == null) {
		alert("이메일을 확인 하세요.");
		return false;
	}

	var IPArray = domain.match(ipDomainPat);
	if (IPArray != null) {
		for (var i=1; i<=4; i++) {
			if (IPArray[i] > 255) {
				alert("IP주소를 확인하세요.");
				return false;
			}
		}
		return true;
	}

	var atomPat = new RegExp("^" + atom + "$");
	var domArr = domain.split(".");
	var len = domArr.length;
	for (i=0;i<len;i++) {
		if (domArr[i].search(atomPat)==-1) {
			alert("이메일을 확인하세요.");
			return false;
	  }
	}

	if (checkTLD && domArr[domArr.length-1].length != 2 && domArr[domArr.length-1].search(knownDomsPat) == -1) {
		alert("이메일을 확인하세요.");
		return false;
	}
	if (len < 2) {
		alert("이메일이 잘못되었습니다.");
		return false;
	}
	return true;
}