function echeck(str, alertmsg) {
	var at="@", dot=".", lat=str.indexOf(at), lstr=str.length, ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1) {
		alert(alertmsg)
		return false
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert(alertmsg)
	   return false
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert(alertmsg)
		return false
	}
	if (str.indexOf(at,(lat+1))!=-1){
		alert(alertmsg)
		return false
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert(alertmsg)
		return false
	}
	if (str.indexOf(dot,(lat+2))==-1){
		alert(alertmsg)
		return false
	}
	 if (str.indexOf(" ")!=-1){
		alert(alertmsg)
		return false
	 }
	 return true;
}

function externalLinks() { 
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
 } 
} 
window.onload = externalLinks;

var win=null;
function NewWindow(mypage,myname,w,h,scroll){
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars='+scroll+',';
	settings +='resizable=no';
	win = window.open(mypage,myname,settings);
	if (parseInt(navigator.appVersion) >= 4) {
		win.window.focus();
	}
}

var questionSent = false;
var subscriptionSent = false;
var msg_close = '';

function toggle(id) {
	if (document.getElementById(id).style.display == 'block') {
		document.getElementById(id).style.display = 'none';
	} else {
		document.getElementById(id).style.display = 'block';
	}
}

var http_request = false;

function closePopup() {
	toggle('popupMsg');	
	if (document.getElementById('popup').style.display == 'block')
		toggle('popup');
	document.getElementById('popupContent').style.visibility = 'visible';
}

function alertSavedComment() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				result = http_request.responseText;
				document.getElementById('cName').value = '';
				document.getElementById('cEmail').value = '';
				document.getElementById('cContent').value = '';
				toggle('popupMsg');
				toggle('preloader');
				closePop = setTimeout('closePopup()', 2000);
			} else {
				alert('Klaida...');
				toggle('popupMsg');
				toggle('preloader');
				toggle('popupMsg');
				toggle('popup');
				document.getElementById('popupContent').style.visibility = 'visible';
			}
		}
}


function saveComment(fillmsg, lang, msg_email) {
		 http_request = false;
		 
		 var name = document.getElementById('cName').value;
		 var content = document.getElementById('cContent').value;
		 var email = document.getElementById('cEmail').value;
		 if ((name == '') || (content == '')) { alert(fillmsg); return false; }		 
		 if (email != '')
		 	if (!echeck(email, msg_email)) return false;
			
		 document.getElementById('popupContent').style.visibility = 'hidden';
		 toggle('preloader');
		 
		 url='submit.html';
		 
		 if (window.XMLHttpRequest) {
			 http_request = new XMLHttpRequest();
			 if (http_request.overrideMimeType) {
				 http_request.overrideMimeType('text/html');
			 }
		 } else if (window.ActiveXObject) {
			 try {
				 http_request = new ActiveXObject("Msxml2.XMLHTTP");
			 } catch (e) {
				 try {
					 http_request = new ActiveXObject("Microsoft.XMLHTTP");
				 } catch (e) {}
			 }
		 }
		 if (!http_request) {
			 alert('Cannot create XMLHTTP instance');
			 return false;
		 }
		 
		 http_request.onreadystatechange = alertSavedComment;
		 dt='&dt='+new Date().getTime();
		 http_request.open('GET', url + "?saveComment=1&name="+ name + "&email=" + email + "&content=" + content + "&lang=" + lang + dt, true);
		 http_request.send(null);
}

function saveSubscription(msg_wrong) {
		 http_request = false;
		 
		 var email = document.getElementById('sEmail').value;
		 if (!echeck(email, msg_wrong)) return false;
		 
		 url='submit.html';
		 
		 if (window.XMLHttpRequest) {
			 http_request = new XMLHttpRequest();
			 if (http_request.overrideMimeType) {
				 http_request.overrideMimeType('text/html');
			 }
		 } else if (window.ActiveXObject) {
			 try {
				 http_request = new ActiveXObject("Msxml2.XMLHTTP");
			 } catch (e) {
				 try {
					 http_request = new ActiveXObject("Microsoft.XMLHTTP");
				 } catch (e) {}
			 }
		 }
		 if (!http_request) {
			 alert('Cannot create XMLHTTP instance');
			 return false;
		 }
		 
		 toggle('preloader2');		 
		 document.getElementById('btnSubs').style.visibility = 'hidden';
		 document.getElementById('sEmail').disabled = 'disabled';		 
		 http_request.onreadystatechange = alertSavedSubscription;
		 dt='&dt='+new Date().getTime();
		 http_request.open('GET', url + "?saveSubscription=1&email=" + email + dt, true);
		 http_request.send(null);
}

function alertSavedSubscription() {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				result = http_request.responseText;
				toggle('preloader2');
				document.getElementById('sEmail').style.display = 'none';
				toggle('btnSubs');
				document.getElementById('subStatusText').innerHTML = result;
			} else {
				alert('Klaida...');
				toggle('preloader2');
			}
		}
}