diff --git a/_ajax/update_presence.php b/_ajax/update_presence.php
index d830120..94e2b7d 100644
--- a/_ajax/update_presence.php
+++ b/_ajax/update_presence.php
@@ -12,13 +12,21 @@ else $sql = new sql('localhost','id9073794_tollashodos','uprRscU8bGpJ','id907379
 
 $check_query = "SELECT * FROM presence WHERE pr_training_tr_id = " . $_POST['tr_id'] . " AND pr_user_kid_uk_id = " . $_POST['user_id'] . ";";
 
-if (!$sql->num_of_rows($check_query) && $_POST['checked'] == "true") {
+if (!$sql->num_of_rows($check_query) && $_POST['checked'] == "false") {
     $sql->insert_into('presence', array('pr_user_kid_uk_id' => $_POST['user_id'], 'pr_training_tr_id' => $_POST['tr_id']));
     log::register('new_presence', 'Edzés: ' . $_POST['tr_id'] . ', gyerek: ' . $_POST['user_id'], null, $_POST['admin_id']);
+
+    if ($_POST['credited']) {
+        $sql->update_table('user_kid', array('uk_credit' => $_POST['credit'] + 1), array('uk_id' => $_POST['user_id']));
+    }
 }
-elseif ($sql->num_of_rows($check_query) && $_POST['checked'] != "true") {
+elseif ($sql->num_of_rows($check_query) && $_POST['checked'] == "true") {
     $sql->execute_query('delete from presence where pr_user_kid_uk_id = ' . $_POST['user_id'] . ' AND pr_training_tr_id = ' . $_POST['tr_id']);
     log::register('delete_presence', 'Edzés: ' . $_POST['tr_id'] . ', gyerek: ' . $_POST['user_id'], null, $_POST['admin_id']);
+
+    if ($_POST['credit'] > 0) {
+        $sql->update_table('user_kid', array('uk_credit' => $_POST['credit'] - 1), array('uk_id' => $_POST['user_id']));
+    }
 }
 
 ?>
diff --git a/_class/class_user_kid.php b/_class/class_user_kid.php
index b27204c..99235ec 100644
--- a/_class/class_user_kid.php
+++ b/_class/class_user_kid.php
@@ -657,11 +657,34 @@ class user_kid extends user_parent {
             }
 
             $de_array[] = $new_diary_entry;
-
         }
 
         //itt csak hivatkozással adjuk át a tömböt, a calculate_balance kiszámolja, belerakja és visszadja
         $this->calculate_balance($de_array, $this);
     }
+
+    public function get_credit_color($has_credit, $credit, $trainingPrice) {
+        //vizsgálni kell, hogy: negatív egyenleg előfordulhat-e
+            //ha igen, van-e hitelezés
+                //ha igen, túllepte-e PIROS
+                    //ha nem, akkor SÁRGA
+            //ha nincs, akkor azonnal PIROS
+
+        if ($this->get_uk_balance() < 0 || ($this->get_uk_balance() - $trainingPrice) < 0) {
+            if (!$has_credit) {
+                return 'restricted';
+            }
+            else {
+                if ($this->get_uk_credit() < $credit) {
+                    return 'credit-warning';
+                }
+                else {
+                    return 'credit-restricted';
+                }
+            }
+
+        }
+        return false;
+    }
 }
 ?>
diff --git a/_css/default.css b/_css/default.css
index 3a6b520..46ac2f4 100644
--- a/_css/default.css
+++ b/_css/default.css
@@ -241,7 +241,15 @@ a.addbutton.noti {
     border-left: 2px solid #000;
     font-size: 18px;
     font-family: Arial;
+}
 
+.list .name_tag.credit-warning {
+    background-color: rgb(255, 190, 120);
+}
+
+.list .name_tag.restricted, .list .name_tag.credit-restricted {
+    background-color: #fd4d4d;
+    cursor: not-allowed;
 }
 
 .user_mod_form {
@@ -727,82 +735,85 @@ form#auto_filters > div > label {
 
 @media (min-width: 680px) {
 
-.categories {
-    width: unset;
-    text-align: left;
-    margin: 0px 0px 0px 45px;
-    padding: 0;
-}
+    .categories {
+        width: unset;
+        text-align: left;
+        margin: 0px 0px 0px 45px;
+        padding: 0;
+    }
 
-.toggle {
-    width: 50px;
-    height: 50px;
-    position: relative;
-    right: -5px;
-    top: -10px;
-    background-color: #edfc5a;
-    float: right;
-    border-right: 3px solid;
-    cursor: pointer;
-}
+    .toggle {
+        width: 50px;
+        height: 50px;
+        position: relative;
+        right: -5px;
+        top: -10px;
+        background-color: #edfc5a;
+        float: right;
+        border-right: 3px solid;
+        cursor: pointer;
+    }
 
-.list .list_item .toggle img {
-    position: relative;
-    left: 12px;
-    top: 10px;
-    width: 25px;
-    height: 25px;
-}
+    .list .list_item .toggle img {
+        position: relative;
+        left: 12px;
+        top: 10px;
+        width: 25px;
+        height: 25px;
+    }
 
-.name_span {
-    min-width: 200px;
-    display: inline-block;
-    margin: 0;
-}
+    .name_span {
+        min-width: 200px;
+        display: inline-block;
+        margin: 0;
+    }
 
-.category_list {
-    width: 25%;
-    margin: 0;
-    display: inline;
-}
+    .category_list {
+        width: 25%;
+        margin: 0;
+        display: inline;
+    }
 
-.add_category {
-    width: 25%;
-    margin: 0;
-}
+    .add_category {
+        width: 25%;
+        margin: 0;
+    }
 
 
-.list .date_separator {
-    width: 100%;
-}
+    .list .date_separator {
+        width: 100%;
+    }
 
-.balance {
-    clear: both;
-    text-align: left;
-    margin: 10px 0px 15px 0px;
-    font-size: 20px;
-    font-weight: bold;
-    padding-left: 5px;
-    border-bottom: 2px solid;
-    width: 30%;
-}
+    .balance {
+        clear: both;
+        text-align: left;
+        margin: 10px 0px 15px 0px;
+        font-size: 20px;
+        font-weight: bold;
+        padding-left: 5px;
+        border-bottom: 2px solid;
+        width: 30%;
+    }
 
-.list_item table.money td.no_mobile_show {
-    display: table-cell;
-}
+    .list_item table.money td.no_mobile_show {
+        display: table-cell;
+    }
 
-.list_item table.money td.sum {
-    width: 1%;
-    white-space: nowrap;
-}
-
-.list_item table.money td.quarter_width {
-    width: 25%;
-    min-width: 100px;
-    text-align: left;
-}
+    .list_item table.money td.sum {
+        width: 1%;
+        white-space: nowrap;
+    }
 
+    .list_item table.money td.quarter_width {
+        width: 25%;
+        min-width: 100px;
+        text-align: left;
+    }
 
+    .credit-text {
+        float: right;
+        margin-right: 15px;
+    }
 }
 
 @media (min-width: 1250px) {
@@ -875,6 +886,4 @@ form#auto_filters > div > label {
     .diary_header .balance_text {
 
     }
-
-
 }
diff --git a/_include/include_presence.php b/_include/include_presence.php
index 2a3f780..f79f457 100644
--- a/_include/include_presence.php
+++ b/_include/include_presence.php
@@ -129,6 +129,8 @@ if ($this->is_id()) {
             $s_users[] = $s_user;
         }
 
+        //lekérjük a hitelalkalom beállítást
+        $credit = $sql->single_variable("SELECT setv_int FROM setting_value JOIN setting ON setv_setting_set_id = set_id WHERE set_name = 'Hitelalkalom';");
 
 
         $smarty->assign('training', $training);
@@ -141,12 +143,11 @@ if ($this->is_id()) {
         $smarty->assign('sorted_users', $s_users);
         $smarty->assign('rest_users', $rest_users);
         $smarty->assign('tr_id', $this->get_id());
+        $smarty->assign('has_credit', $credit !== null);
+        $smarty->assign('credit', $credit);
 
         $smarty->display("presence.tpl");
     }
-
-
-
 }
 
 else {
diff --git a/event_handler.php b/event_handler.php
index 2885d5c..44a78fe 100644
--- a/event_handler.php
+++ b/event_handler.php
@@ -296,6 +296,10 @@ if (isset($_POST['action'])) {
 
             $tmp_user->update_balance();
 
+            //ha pozitiv az egyenleg, akkor lenullázhatjuk a hitelalkalmait (???)
+            if (($tmp_user->get_uk_balance() + $_POST['mod_sum']) > 0) {
+                $sql->update_table('user_kid', array('uk_credit' => '0'), array('uk_id' => $_POST['mod_user_kid_uk_id']));
+            }
             header("Location: /admin/money_deposit");
             break;
         case 'money_deposit_update':
diff --git a/template/templates/presence.tpl b/template/templates/presence.tpl
index a9dbfeb..d3f7449 100644
--- a/template/templates/presence.tpl
+++ b/template/templates/presence.tpl
@@ -42,22 +42,30 @@
     </div>
 
     {if $trc_coaches || $trc_helpers}
-    <div class="list_item">
-        <label class="desc" id="title1" for="coaches">
-            <img src="/_image/coach.png">
-            Edző(k):
-        </label>
-        <div style="display: inline-block;">
-        {foreach $trc_coaches as $coach}
-            {$coach->get_ua_name()}<br>
-        {/foreach}
-        {foreach $trc_helpers as $coach}
-            <span class="italic">{$coach->get_ua_name()}</span><br>
-        {/foreach}
+        <div class="list_item">
+            <label class="desc" id="title1" for="coaches">
+                <img src="/_image/coach.png">
+                Edző(k):
+            </label>
+            <div style="display: inline-block;">
+            {foreach $trc_coaches as $coach}
+                {$coach->get_ua_name()}<br>
+            {/foreach}
+            {foreach $trc_helpers as $coach}
+                <span class="italic">{$coach->get_ua_name()}</span><br>
+            {/foreach}
+            </div>
         </div>
-    </div>
     {/if}
 
+    <div class="list_item">
+        <label>
+            <img src="/_image/deposit.png">
+            Edzés díja:
+        </label>
+        <div>{$training->get_tr_price()} Ft</div>
+    </div>
+
     <div class="list_item">
         <label class="desc" id="title1" for="tr_headcount">
             <img src="/_image/letszam.png">
@@ -69,14 +77,13 @@
     </div>
 </div>
 
-
 <input type="hidden" id="tr_id" value="{$tr_id}">
 <input type="hidden" id="admin_id" value="{$user_login->get_ua_id()}">
 
 <br><br><br>
 
 {if !$training->get_tr_locked()}
-    <div class="list">
+    <div class="list" id="main-list-container" data-max-credit="{$credit}">
     {foreach $users as $user}
         {if $user@first ||
             $users[$user@index]->get_uk_presence_on_previous_trainings($trainings) !=
@@ -86,9 +93,11 @@
             {$users[$user@index]->get_uk_presence_on_previous_trainings($trainings)}/4
         </span>
         {/if}
-        <div class="{if $user->get_uk_presence($tr_id)}name_tag_checked{else}name_tag{/if} width70" id="{$user->get_uk_id()}">
+        <div class="{if $user->get_uk_presence($tr_id)}name_tag_checked{else}name_tag{/if} width70 {$user->get_credit_color($has_credit, $credit, $training->get_tr_price())}" id="{$user->get_uk_id()}" data-credit="{$user->get_uk_credit()}">
             <img src="/_image/shuttlecock.png">
-            <div>{$user->get_uk_name()}</div>
+            <div>
+                {$user->get_uk_name()}
+            </div>
         </div>
 
     {/foreach}
@@ -97,20 +106,26 @@
     <br><br>
 
     <div class="list">
-    {foreach $rest_users as $rest_user}
-        <div class="{if $rest_user->get_uk_presence($tr_id)}name_tag_checked{else}name_tag{/if} width70" id="{$rest_user->get_uk_id()}">
-            <img src="/_image/shuttlecock.png">
-            <div>{$rest_user->get_uk_name()}</div>
-        </div>
-    {/foreach}
+        {foreach $rest_users as $rest_user}
+            <div class="{if $rest_user->get_uk_presence($tr_id)}name_tag_checked{else}name_tag{/if} width70 {$rest_user->get_credit_color($has_credit, $credit, $training->get_tr_price())}" id="{$rest_user->get_uk_id()}" data-credit="{$rest_user->get_uk_credit()}">
+                <img src="/_image/shuttlecock.png">
+                <div>
+                    {$rest_user->get_uk_name()}
+                    {if $rest_user->get_credit_color($has_credit, $credit, $training->get_tr_price())}
+                        <span class="credit-text">(<span class="credit-counter">{$rest_user->get_uk_credit()}</span>/{$credit})</span>
+                    {/if}
+                </div>
+            </div>
+        {/foreach}
     </div>
-
 {else}
     <div class="list">
         {foreach $sorted_users as $user}
-            <div class="list_item">
+            <div class="list_item {$user->get_credit_color($has_credit, $credit, $training->get_tr_price())}" data-credit="{$user->get_uk_credit()}">
                 <img src="/_image/shuttlecock.png">
-                {$user->get_uk_name()}
+                <div>
+                    {$user->get_uk_name()}
+                </div>
             </div>
         {/foreach}
     </div>
@@ -118,91 +133,134 @@
 {/if}
 
 <script>
-
-
-
-$('.name_tag').click(function() {
-    //alert($(this).css('backgroundColor'));
-    var user_id = $(this).attr('id');
-    var x = $(this).css('backgroundColor');
-    hexc(x);
-    var checked = (color == '#e2edff');
-    var tr_id = $("#tr_id").val();
-    //ha kék, akkor zöldre változtatja, egyébként fordítva
-    if (color == '#e2edff') {
-        $(this).css('backgroundColor', '#1eea0b');
-        var el = $('#headcount');
-        var num = parseInt(el.text());
-        el.text(num+1).append(" fő");
-
+    function leaveClassesAndAdd(obj, className) {
+        $(obj).removeClass('restricted').removeClass('credit-restricted').removeClass('credit-warning').addClass(className);
     }
-    else {
-        $(this).css('backgroundColor', '#e2edff');
-        var el = $('#headcount');
-        var num = parseInt(el.text());
-        el.text(num-1).append(" fő");
-    }
-    //alert(checked);
 
-    var admin_id = $("#admin_id").val();
+    $('.name_tag, .name_tag_checked').click(function() {
+        if (($(this).hasClass('restricted') || $(this).hasClass('credit-restricted')) && !$(this).hasClass('name_tag_checked')) {
+            console.log('stop');
+            return false;
+        }
+        //alert($(this).css('backgroundColor'));
+        var user_id = $(this).attr('id');
+        var x = $(this).css('backgroundColor');
+        hexc(x);
+        //var checked = (color == '#e2edff');
+        var checked = $(this).hasClass('name_tag_checked');
+        var tr_id = $("#tr_id").val();
 
-    $.ajax({
-        type: "POST",
-        url: '/_ajax/update_presence.php',
-        data: { checked : checked, user_id : user_id, tr_id : tr_id, admin_id :  admin_id},
-        success: function(data) {
+        //hitelezett alkalom, logikai változó
+        var credited = $(this).hasClass('credit-warning');
+        var credit = $(this).data('credit');
+        var originalCredit = $(this).data('credit');
+
+        //ha kék, akkor zöldre változtatja, egyébként fordítva
+        //if (color == '#e2edff') {
+        if ($(this).hasClass('name_tag')) {
+            //$(this).css('backgroundColor', '#1eea0b');
+            $(this).addClass('name_tag_checked');
+            $(this).removeClass('name_tag');
+            var el = $('#headcount');
+            var num = parseInt(el.text());
+            el.text(num+1).append(" fő");
+
+            if (credited) {
+                credit++;
+                $(this).data('credit', credit);
+                $(this).attr('data-credit', credit);
+                $(this).find('.credit-counter').html(credit);
+
+                //meg kell nézni, hogy a classokat le kell-e venni/hozzá kell-e adni
+                if (credit == $('#main-list-container').data('max-credit')) {
+                    leaveClassesAndAdd($(this), 'credit-restricted');
+                }
+
+            }
 
         }
+        else {
+            //$(this).css('backgroundColor', '#e2edff');
+            $(this).addClass('name_tag');
+            $(this).removeClass('name_tag_checked');
+            var el = $('#headcount');
+            var num = parseInt(el.text());
+            el.text(num-1).append(" fő");
+
+            if (credit > 0) {
+                credit--;
+                $(this).data('credit', credit);
+                $(this).attr('data-credit', credit);
+                $(this).find('.credit-counter').html(credit);
+
+                //meg kell nézni, hogy a classokat le kell-e venni/hozzá kell-e adni
+                if ($('#main-list-container').data('max-credit') > 0) {
+                    leaveClassesAndAdd($(this), 'credit-warning');
+                }
+                else {
+                    leaveClassesAndAdd($(this), 'credit-restricted');
+                }
+            }
+        }
+        //alert(checked);
+
+        var admin_id = $("#admin_id").val();
+
+        $.ajax({
+            type: "POST",
+            url: '/_ajax/update_presence.php',
+            data: { checked : checked, user_id : user_id, tr_id : tr_id, admin_id :  admin_id, credited : credited, credit : originalCredit},
+            success: function(data) {
+
+            }
+        });
+
     });
 
-});
-
-$('.name_tag_checked').click(function() {
-    //alert($(this).css('backgroundColor'));
-    var user_id = $(this).attr('id');
-    var x = $(this).css('backgroundColor');
-    hexc(x);
-    var checked = (color == '#e2edff');
-    var tr_id = $("#tr_id").val();
-    //ha kék, akkor zöldre változtatja, egyébként fordítva
-    if (color == '#e2edff') {
-        $(this).css('backgroundColor', '#1eea0b');
-        var el = $('#headcount');
-        var num = parseInt(el.text());
-        el.text(num+1).append(" fő");
-
-    }
-    else {
-        $(this).css('backgroundColor', '#e2edff');
-        var el = $('#headcount');
-        var num = parseInt(el.text());
-        el.text(num-1).append(" fő");
-    }
-    //alert(checked);
-
-    var admin_id = $("#admin_id").val();
-
-    $.ajax({
-        type: "POST",
-        url: '/_ajax/update_presence.php',
-        data: { checked : checked, user_id : user_id, tr_id : tr_id, admin_id :  admin_id},
-        success: function(data) {
+   /* $('.name_tag_checked').click(function() {
+        //alert($(this).css('backgroundColor'));
+        var user_id = $(this).attr('id');
+        var x = $(this).css('backgroundColor');
+        hexc(x);
+        var checked = (color == '#e2edff');
+        var tr_id = $("#tr_id").val();
+        //ha kék, akkor zöldre változtatja, egyébként fordítva
+        if (color == '#e2edff') {
+            $(this).css('backgroundColor', '#1eea0b');
+            var el = $('#headcount');
+            var num = parseInt(el.text());
+            el.text(num+1).append(" fő");
 
         }
-    });
+        else {
+            $(this).css('backgroundColor', '#e2edff');
+            var el = $('#headcount');
+            var num = parseInt(el.text());
+            el.text(num-1).append(" fő");
+        }
+        //alert(checked);
 
-});
+        var admin_id = $("#admin_id").val();
+
+        $.ajax({
+            type: "POST",
+            url: '/_ajax/update_presence.php',
+            data: { checked : checked, user_id : user_id, tr_id : tr_id, admin_id :  admin_id},
+            success: function(data) {
+
+            }
+        });
+
+    });*/
 
 
-function hexc(colorval) {
-    var parts = colorval.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
-    delete(parts[0]);
-    for (var i = 1; i <= 3; ++i) {
-        parts[i] = parseInt(parts[i]).toString(16);
-        if (parts[i].length == 1) parts[i] = '0' + parts[i];
+    function hexc(colorval) {
+        var parts = colorval.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
+        delete(parts[0]);
+        for (var i = 1; i <= 3; ++i) {
+            parts[i] = parseInt(parts[i]).toString(16);
+            if (parts[i].length == 1) parts[i] = '0' + parts[i];
+        }
+        color = '#' + parts.join('');
     }
-    color = '#' + parts.join('');
-}
-
-
 </script>