function getCookieVal (offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1) endstr = document.cookie.length;  
	return unescape(document.cookie.substring(offset, endstr));
}

// เรียกใช้งาน Cookie
function GetCookie (name) {  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) {    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg)      
		return getCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}

// สร้าง Cookie
function SetCookie (name, value) {  
	var argv = SetCookie.arguments;  
	var argc = SetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  //alert(expires);
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
		((path == null) ? "" : ("; path=" + path)) +  
		((domain == null) ? "" : ("; domain=" + domain)) +    
		((secure == true) ? "; secure" : "");
}

// ลบ Cookie
function DeleteCookie (name) {  
	var exp = new Date();  
		exp.setTime (exp.getTime() - 1);  
	var cval = GetCookie (name);  
		document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
var cookie_member_email;
function checkMemberLogin(){
	var SMIID = false;
	var EMAIL = false;
	var guest = GetCookie('member');
	if(guest==null){
		guest=0;
	}else{
		var ac = guest.split('|');
		if(ac[0]!=null && ac[1]!=null){
			cookie_member_email = ac[1];
			return true;
		}else{
			return false;
		}
	}
	return false;
}