// trim()ÇÔ¼ö Á¤ÀÇ
	String.prototype.trim = function()
	{
		return this.replace(/(^\s*)|(\s*$)/g, "");
	}
	
	function Error(msg, ele)
	{
		if(msg) alert(msg);
		if(ele) ele.focus();
		return false;
	}
	
		function EmailChk2(emailStr)
	{		
	if ( emailStr.indexOf("@daum.net") >= 1 || emailStr.indexOf("@hanmail.net") >= 1 || emailStr.indexOf("@hanmail.com") >= 1) return false ;
	return true;
	}
		function EmailChk3(emailStr)
	{		
	if ( emailStr.indexOf("lemons.co.kr") >= 1) return false ;
	return true;
	}
		
	function EmailChk(emailStr)
	{
		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) return false;

		var user=matchArray[1];
		var domain=matchArray[2];

		for (i=0; i<user.length; i++)
		{
			if (user.charCodeAt(i)>127) return false;
		}
		
		for (i=0; i<domain.length; i++)
		{
			if (domain.charCodeAt(i)>127) return false;
		}

		if (user.match(userPat)==null) return false;

		var IPArray=domain.match(ipDomainPat);

		if (IPArray!=null)
		{
			for (var i=1;i<=4;i++)
			{
				if (IPArray[i]>255) 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) return false;
		}

		if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) return false;
		if (len<2) return false;

		return true;
	}
	
	function IsNumber()
	{
		var k = event.keyCode;
	
		if((k>47 && k<58) || k==46 || k==13) return true;
		else return Error("¼ýÀÚ¸¸ ÀԷ°¡´ÉÇÕ´Ï´Ù.", "");
	}

	function Loging()
	{
	alert('·Î±×ÀÎÈÄ ÀÌ¿ëÇϽñ⠹ٶø´Ï´Ù.');
	}

function changeImage(img_url){
	document.big_img.src = img_url;
    	return;
}




	function Hidden_ly(ly) {
		var lu_name = document.getElementById(""+ly+"");
		lu_name.style.visibility = 'hidden';
	}

	function Show_ly(ly) {
		var lu_name = document.getElementById(""+ly+"");
		lu_name.style.visibility = 'visible';
	}


	
	/********************************
	 * ·Î±×ÀÎ Æ˾÷À» ¶ç¿î´Ù.
	********************************/
	function openLogin(Return) {
		
	alert('·Î±×ÀÎÈÄ ÀÌ¿ëÇϽñ⠹ٶø´Ï´Ù.');

		var loginurl="/membership/login.php";
		if(Return) loginurl=loginurl+"?Return="+Return;
		
		top.location=loginurl;
		//			loginpop = window.open(loginurl,'','width=365,height=337,resizable=no,scrollbars=no,left=350,top=200');
		}

	function IDPWFIND() {
		var loginurl="/login/FindIDPw.php";
					loginpop = window.open(loginurl,'','width=350,height=400,resizable=no,scrollbars=no,left=100,top=20');
		}