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var http_request = false;
function makeRequest(url) {
  http_request = false;
  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) {}
     }
  }
  http_request.open('GET', url, true);
}

function revStr(str) {
  if (!str) return '';
  var revstr = '';
  for (i = str.length-1; i>=0; i--) {
    revstr += str.charAt(i);
  }
  return revstr;
}

function NapisteNamTrailerzone() {  
  var userPart1 = "trailer";
  var userPart2bw = "enoz";
  var atDotChars = "@."
  var domain = "gameleader";
  var suffix = "cz";
  var outcome = userPart1 + revStr(userPart2bw) + atDotChars.charAt(0) + domain + atDotChars.charAt(1) + suffix;
  document.location = 'mai' + 'lto:' + outcome;
}

function checkEnter(e) {  
  if(e && e.which){ e = e; key = e.which; }
  else { e = event; key = e.keyCode; }  

  if(key == 13){ document.forms['login'].submit(); return false; }
  else { return true; }
}


function setPasswordType(inputField) {
  if(inputField.type == 'text') {
    var passwdField = document.createElement("input");
    passwdField.name = inputField.name;
    passwdField.type = "password";
    inputField.parentNode.insertBefore(passwdField, inputField);
    inputField.parentNode.removeChild(inputField);
    passwdField.focus();    
    passwdField.onblur = function() { if(this.value=='') this.value='heslo'; }
    passwdField.onkeydown = function(evt) { return checkEnter(evt); }
  }
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function radioSelect(id){
  document.forms['frmAP'].platforma[id].checked = true;
  document.forms['frmAP'].submit();
}

var currentRes = 3;

function ToggleChck(id)
{
  siteurl = "http://trailerzone.gameleader.cz";

    currentRes = id-3;
  
    chck = document.getElementById("chckImg" + id);
	  chck.src = siteurl + '/images/chckselect.jpg';
	  
	  if (id == 4) { id2 = 5; id3 = 6; id4 = 7; }
	  else if (id == 5) { id2 = 4; id3 = 6; id4 = 7; }
	  else if (id == 6) { id2 = 4; id3 = 5; id4 = 7; }
	  else { id2 = 4; id3 = 5; id4 = 6; }    	  
    
    otherChck1 = document.getElementById("chckImg" + id2);
    otherChck1.src = siteurl + '/images/chckblank.jpg';
  
    otherChck2 = document.getElementById("chckImg" + id3);
    otherChck2.src = siteurl + '/images/chckblank.jpg';
    
    otherChck3 = document.getElementById("chckImg" + id4);
    otherChck3.src = siteurl + '/images/chckblank.jpg';    
    
    embedText = document.getElementById("embedArea");
    embedText.innerHTML = embedCode.replace("XROZMERX", currentRes);
                 
}

function ZoomStar(id)
{
var star = document.getElementById("star" + id);
star.style.backgroundPosition = "center -34px";
}

var currentStar = new Array();
for (i=1;i<=5;i++){ currentStar[i] = 1; }

function ZoomOutStar(id,state)
{
if (currentStar[id] != 1) { state = currentStar[id]; }
var star = document.getElementById("star" + id);
star.style.backgroundPosition = "center " + state + "px";
}

function voteSuffix(number){
  if (number == 1) return '';
  else if (number > 4 || number == 0) return 'ů';
  else if (number > 1) return 'y';
}

function RateTrailer(id,rating)
{
  makeRequest("http://trailerzone.gameleader.cz/rate.php?id=" + id + "&value=" + rating);

  http_request.onreadystatechange = function () {
    if(http_request.readyState == 4){ if(http_request.status == 200)
    { 
      var data_feedback = http_request.responseText;
      
      var rateStats = data_feedback.split("|");
      
      if (rateStats[0] != ""){
        var rs = document.getElementById("ratingStats");
        rs.innerHTML = 'aktuálně: <b>'+ Math.round(rateStats[0]*10)/10 +'</b> / '+ rateStats[1] +' hlas' + voteSuffix(rateStats[1]);
        
        for (i=1;i<=5;i++){
          star = document.getElementById("star" + i);
          if (Math.round(rateStats[0]) > i-1){ shift = -17; } else { shift = 0 };
          currentStar[i] = shift;
          star.style.backgroundPosition = "center " + shift + "px";
        }
      
        var rh = document.getElementById("ratingHelp");
        rh.innerHTML = 'Děkujeme za Váš hlas.';
      }        
    }}
  };
  http_request.send(null);
}

function strtr(str, from, to)
{
  for (var i = 0; i < from.length; i++){
    j = str.indexOf(from[i]);
    while (j > -1){
      str = str.replace(from[i], to[i]);
      j = str.indexOf(from[i]);
    }
  }
  return str;
}

function SetSmile(sid)
{
  switch(sid) {
  case 1 : { nsid = ":gun:"; break; }
  case 2 : { nsid = ":-)"; break; }
  case 3 : { nsid = "8-)"; break; }
  case 4 : { nsid = ";-)"; break; }
  case 5 : { nsid = ":angry:"; break; }
  case 6 : { nsid = ":-D"; break; }
  case 7 : { nsid = ":dance:"; }    
  }
  var txtArea = document.getElementById("zprava");
  txtArea.value = txtArea.value + " " + nsid + " ";
  txtArea.focus();
}

function DrawSmiles(str)
{    
  var from = new Array( ":-)", ";-)", ":-D", "8-)", ":gun:", ":angry:", ":dance:" );
    
  var to = new Array(
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/smile.gif\" width=\"20\" height=\"21\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/wink.gif\" width=\"18\" height=\"18\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/laugh.gif\" width=\"42\" height=\"27\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/cool.gif\" width=\"20\" height=\"21\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/gun.gif\" width=\"38\" height=\"18\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/angry.gif\" width=\"30\" height=\"25\" alt=\"\" />",
    "<img src=\"http://trailerzone.gameleader.cz/images/smajlici/dance.gif\" width=\"42\" height=\"26\" alt=\"\" />"      
  );
    
  return strtr(str, from, to);
}

function utf8_encode(string)
{
	string = string.replace(/\r\n/g,"\n");
	var utftext = "";

	for (var n = 0; n < string.length; n++){
		var c = string.charCodeAt(n);

		if (c < 128){
			utftext += String.fromCharCode(c);
		}
		else if ((c > 127) && (c < 2048)){
			utftext += String.fromCharCode((c >> 6) | 192);
			utftext += String.fromCharCode((c & 63) | 128);
		}
		else {
			utftext += String.fromCharCode((c >> 12) | 224);
			utftext += String.fromCharCode(((c >> 6) & 63) | 128);
			utftext += String.fromCharCode((c & 63) | 128);
		}
	}

	return escape(utftext);
}

function ShowSendButton()
{
  var waitIcon = document.getElementById('waitIcon');
  waitIcon.style.display = "none";    
  var btnSendWrapper = document.getElementById('btnSendWrapper');
  btnSendWrapper.style.display = "block";
  btnSendWrapper.lastChild.blur();
}

var currentHeight = 0;

function slide(id, newPostsHeight){
  var newPosts = document.getElementById('newPosts' + globalLastID);
  currentHeight += (newPostsHeight - currentHeight)/10;
  newPosts.style.height = currentHeight + 'px';
  if (currentHeight + 1 > newPostsHeight){
    currentHeight = 0; newPosts.style.height = newPostsHeight; clearInterval(timerID);
    document.forms['responseForm'].prezdivka.value = "";
    document.forms['responseForm'].zprava.value = "";    
    ShowSendButton();
  }
}

var globalLastID = 0; var timerID = 0;

function submitComment(id,lastID)
{
  var nickname = document.forms['responseForm'].prezdivka.value;
  var message = document.forms['responseForm'].zprava.value;
  
  if (nickname == ''){ document.forms['responseForm'].prezdivka.style.border = "1px solid red"; return; }
  else { document.forms['responseForm'].prezdivka.style.border = "1px solid #BBBBBB"; }
    
  if (message == ''){ document.forms['responseForm'].zprava.style.border = "1px solid red"; return; }
  else { document.forms['responseForm'].zprava.style.border = "1px solid #BBBBBB"; }
  
  var btnSendWrapper = document.getElementById('btnSendWrapper');
  btnSendWrapper.style.display = "none";
  var waitIcon = document.getElementById('waitIcon');
  waitIcon.style.display = "block";  
  
  if (globalLastID == 0) { globalLastID = lastID; }
  else { lastID = globalLastID; }
    
  makeRequest("http://trailerzone.gameleader.cz/submitcomment.php?id=" + id + "&lastID=" + lastID + "&nickname=" + utf8_encode(nickname) + "&message=" + utf8_encode(message));

  http_request.onreadystatechange = function () {
    if(http_request.readyState == 4){ if(http_request.status == 200)
    { 
      var data_feedback = http_request.responseText;
      
       if (data_feedback == 'nomore'){ window.alert("Nemůžete po sobě odeslat více než 2 zprávy k jednomu traileru."); ShowSendButton(); return; }
       else if (data_feedback == 'nourl'){ window.alert("Do textu zprávy ani jména nesmíte vkládat url odkazy."); ShowSendButton(); return; }
                     
       document.forms['responseForm'].prezdivka.style.border = "1px solid #BBBBBB";
       document.forms['responseForm'].zprava.style.border = "1px solid #BBBBBB";
       
       if (globalLastID == 0){
         var commentsWrapper = document.getElementById("commentsWrapper");
         var noComments = document.getElementById("noComments");
         commentsWrapper.removeChild(noComments);
       }
    
       var commentsArray = data_feedback.split('<separator>');
       var k = 0; var newComment = new Array();
       
       var newCommentWrapperTemp = document.getElementById('newCommentWrapper_temp');
       while (newCommentWrapperTemp.hasChildNodes()) { newCommentWrapperTemp.removeChild(newCommentWrapperTemp.lastChild); }
       
       for (var i=0; i<commentsArray.length; i++){
         if (i == 0) { globalLastID = commentsArray[i]; }
         else if ((i+1)%4 == 0)
         {
           k++;
           var newCommentTemp = document.getElementById('newComment_temp');
           newComment[k] = newCommentTemp.cloneNode(true);
           if (lastID > 0) { fline = '<div class="fline"></div>'; } else { fline = ''; }
           newComment[k].innerHTML = '<div class="nickname"><span>' + commentsArray[i-2] + '</span>' + commentsArray[i-1] + '</div><p>' + DrawSmiles(commentsArray[i]) + '</p>' + fline;
           newCommentWrapperTemp.appendChild(newComment[k]);
           newComment[k].style.display = "block";           
         }
       }
       
       newCommentWrapperTemp.style.position = "relative";
       newPostsHeight = newCommentWrapperTemp.offsetHeight + 7;
       newCommentWrapperTemp.style.position = "absolute";
       
       var newPosts = newCommentWrapperTemp.cloneNode(true);
       var cw = document.getElementById("commentsWrapper");
       cw.insertBefore(newPosts, cw.firstChild);              
       newPosts.setAttribute('id', 'newPosts' + globalLastID);
       newPosts.style.overflow = 'hidden'; newPosts.style.height = "1px"; newPosts.style.position = "static"; newPosts.style.visibility = "visible";
       
       timerID = setInterval("slide(" + id + ", " + newPostsHeight + ")", 30);
      
    }}
  };
  http_request.send(null);
}