<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<?php
include "config.php";
include "functions.php";
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Gedik Üniversitesi Ödev Takip Sistemi</title>
  <meta name="robots" content="index, follow" />
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <meta name="author" content="RapidxHTML" />
  <link href="css/style.css" rel="stylesheet" type="text/css" />
  <script type="text/javascript" src="js/jquery.js"></script>
  <script type="text/javascript" src="js/jquery.easing.1.3.js"></script>
  <script type="text/javascript" src="js/fancybox/jquery.fancybox-1.3.1.js"></script>
  <link rel="stylesheet" type="text/css" href="js/fancybox/jquery.fancybox-1.3.1.css" media="screen" />
  <script type="text/javascript" src="js/easyslider.js"></script>
  <script type="text/javascript" src="js/custom.js"></script>
</head>
<body>

<!-- wrapper -->
<div class="rapidxwpr">

  <!-- header -->
  <div id="header">
  
    <!-- logo -->
    <div class="logo">
      <h1><a href="index.php">Gedik Üni.</a></h1>
      <span class="tagline">Ödev - Proje Takip Sistemi</span>
    </div>
    <!-- / logo -->
  
  </div>
  <!-- / header -->
  <?php if(!isset($_SESSION['oturum'])){ ?>
  <!-- mainmenu -->
  <div id="mainmenu">
    <ul id="menu">
      <li class="home"><a href="#tab1">AnaSayfa</a></li>
      <li class="portfolio"><a href="#tab2">S. S. S.</a></li>
      <li class="contact"><a href="#tab3">İletişim</a></li>
    </ul>
  </div>
  <!-- / mainmenu -->
  
  <!-- main body -->
  <div id="middle">
    <div class="middle_bg">

      <div class="tab_container">
      
        <div id="tab1" class="tab_content">
          <!-- page title -->
          <div class="page_title">
            <img class="profile_image" src="images/logo.png" alt="Profile Image" />
            <div class="contact_form">
					<ul>
					<form action="" id="contactForm" method="post">
			<li><label for="contactName">Ogr No</label>Öğrenci Numaranız :<input name="loginogr" id="logintc" class="input_item requiredField" type="text" /></li>
			<li><label for="contactName">Sifre</label>Şifreniz :<input name="loginsifre" id="loginsifre" class="input_item requiredField" type="password" /></li>
			<li><input type="submit" name="giris" id="submit" value="giris" class="submit" /></li>
					</form>
					<?php 
					session_start();
					if($_POST["giris"]){
					$ogrno=$_POST['loginogr'];
					$sifre=$_POST['loginsifre'];
					$query = mysql_query("SELECT * FROM ogrenci WHERE ogrno='$ogrno' and sifre='$sifre'") or die (mysql_error());
					$say = mysql_num_rows($query);
					$cek = mysql_fetch_array($query);
					if($say > 0 ){
					header("refresh:0;");
					$_SESSION['oturum']=true;
					
					}
					else {
					echo "giriş başarısız";
					}
					}
					?>
					</ul>
			</div>
			<br><br><br><br><br><br><br>
          </div> 
          <!-- / page title -->
          
          <!-- services -->
          <div class="services">
            <h2>Duyurular</h2>
			<?php 
			$result = mysql_query($duyurusql) or die(mysql_error());
			?>
            <ul>
			<?php
			while($row = mysql_fetch_array($result)){
             echo "<li><font color='purple'>";
			 echo $row['baslik'];
			 echo "</font></li>";
			 echo "<li>";
			 echo $row['tarih'];
			 echo " Tarihinde yazıldı</li>";
			 echo $row['icerik'];
			 echo "<br><br>";
			  }
			  ?>
            </ul>
          </div>
          <!-- / services -->
        </div>    
      
        <div id="tab2" class="tab_content">
          <!-- page title -->
          <div class="page_title">
            <h2>PORTFOLIO</h2>
            Mauris vulputate metus eu nisl. Praesent placerat. Mauris vitae erat id ante viverra sodales. Proin tincidunt porta velit. Praesent placerat. Mauris vitae 
          </div>
          <!-- / page title -->
      
          <!-- portfolio -->
          <div class="portfolio">
            <div id="slider">
              <ul>
                <li>
                  naber
                </li>
                <li>
                  iyim
                </li>
                <li>
                  senden
                </li>
              </ul>
            </div>
          </div>
          <!-- / portfolio -->
        </div>    
      
        <div id="tab3" class="tab_content">
          <!-- page title -->
          <div class="page_title">
            <h2>İletişim</h2>
            Gedik Üniversitesi Ödev / Proje takip sistemi hakkında isteklerinizi, hata bildirimlerini ve sorunlarınızı bize bildiriniz. Teşekkürler. 
          </div>
          <!-- / page title -->
      
          <!-- contact -->
          <div class="contact">
          
            <!-- contact form -->
            <div class="contact_form">
              <form action="" id="contactForm" method="post">
                <ul>
                  <li><label for="contactName">Name</label><input name="iletisimadi" id="iletisimad" value="Name" class="input_item requiredField" type="text" onclick="if(this.value=='Name')this.value='';" onblur="if(this.value=='')this.value='Name';" /></li>
                  <li><label for="contactEmail">Email</label><input name="iletisimmail" id="iletisimmail" value="Email" class="input_item requiredField email" type="text" onclick="if(this.value=='Email')this.value='';" onblur="if(this.value=='')this.value='Email';" /></li>
                  <li class="message"><label for="contactMessage">Mesajınız</label><textarea rows="5" cols="10" name="iletisimmesaj" id="iletisimmesaj" class="requiredField">Mesajınız</textarea></li>
                  <li><span class="required">Tüm Alanları Doldurunuz.</span> <input type="submit" name="submit" id="submit" value="Gönder" class="submit" /></li>
                </ul>
              </form>
            </div>
            <!-- / contact form -->
            
            <!-- get in touch -->
            <div class="get_in_touch">
              <h4>Buralardan Ulaşabilirsiniz.</h4>
              <ul>
                <li class="home">Lorem Ipsum Street, no.12 12062 Yogyakarta Indonesia</li>
                <li class="phone">(021) 123 456 789</li>
                <li class="email"><a href="mailto:email@yourdomain.com">email@yourdomain.com</a></li>
                <li class="twitter"><a href="http://twitter.com/instantshift">instantshift</a></li>
                <li class="facebook"><a href="http://twitter.com/instantshift">instantshift</a></li>
              </ul>
            </div>
            <!-- / get in touch -->
          
          </div>
          <!-- / contact -->
        </div>    
      
      </div>
      <span class="availability">available</span>
    </div>
  </div>
  <!-- / main body -->
  
  <!-- footer -->
  <div id="footer">
    Copyright &copy; 2014 Reşit Coşkun<br />
    <small>Designed by <a href="http://gedikuni.com/">Reşit Coşkun</a> and developed by <a href="http://gedikuni.com/">Reşit Coşkun</a> Tüm Hakları  <a href="http://gedikuni.com/">Saklıdır.</a></small>.
  </div>
  <!-- / footer -->

</div>
<!-- / wrapper -->

</body>
</html>   
      
<?php } ?>
<?php 
session_start();
if(isset($_SESSION['oturum'])){ ?>
<!-- mainmenu -->
  <div id="mainmenu">
    <ul id="menu">
      <li class="home"><a href="#tab1">AnaSayfa</a></li>
      <li class="portfolio"><a href="#tab2">Ödev</a></li>
      <li class="contact"><a href="#tab3">İletişim</a></li>
    </ul>
  </div>
  <!-- / mainmenu -->
  
  <!-- main body -->
  <div id="middle">
    <div class="middle_bg">

      <div class="tab_container">
      
        <div id="tab1" class="tab_content">
          <!-- page title -->
          <div class="page_title">
          <h2>Merhaba</h2>
            <img class="profile_image" src="images/logo.png" alt="Profile Image" />
            <div class="contact_form">
					<ul>
			<li><label for="contactName">Tc No</label><input name="contactName" id="contactName" value="Tc No" class="input_item requiredField" type="text" onclick="if(this.value=='Tc No')this.value='';" onblur="if(this.value=='')this.value='Tc No';" /></li>
			<li><label for="contactName">Sifre</label><input name="contactName" id="contactName" value="Sifre" class="input_item requiredField" type="text" onclick="if(this.value=='Sifre')this.value='';" onblur="if(this.value=='')this.value='Sifre';" /></li>
			<li><input type="submit" name="submit" id="submit" value="Giriş" class="submit" /></li>
			
					</ul>
			</div>
			<br><br><br><br><br>
          </div> 
          <!-- / page title -->
          
          <!-- services -->
          <div class="services">
            <h2>Duyurular</h2>
			<?php 
			$result = mysql_query($duyurusql) or die(mysql_error());
			?>
            <ul>
			<?php
			while($row = mysql_fetch_array($result)){
             echo "<li><font color='purple'>";
			 echo $row['baslik'];
			 echo "</font></li>";
			 echo "<li>";
			 echo $row['tarih'];
			 echo " Tarihinde yazıldı</li>";
			 echo $row['icerik'];
			 echo "<br><br>";
			  }
			  ?>
            </ul>
          </div>
          <!-- / services -->
        </div>    
      
        <div id="tab2" class="tab_content">
          <!-- page title -->
          <div class="page_title">
            <h2>PORTFOLIO</h2>
            Mauris vulputate metus eu nisl. Praesent placerat. Mauris vitae erat id ante viverra sodales. Proin tincidunt porta velit. Praesent placerat. Mauris vitae 
          </div>
          <!-- / page title -->
      
          <!-- portfolio -->
          <div class="portfolio">
            <div id="slider">
              <ul>
                <li>
                  naber
                </li>
                <li>
                  iyim
                </li>
                <li>
                  senden
                </li>
              </ul>
            </div>
          </div>
          <!-- / portfolio -->
        </div>    
      
        <div id="tab3" class="tab_content">
          <!-- page title -->
          <div class="page_title">
            <h2>İletişim</h2>
            Gedik Üniversitesi Ödev / Proje takip sistemi hakkında isteklerinizi, hata bildirimlerini ve sorunlarınızı bize bildiriniz. Teşekkürler. 
          </div>
          <!-- / page title -->
      
          <!-- contact -->
          <div class="contact">
          
            <!-- contact form -->
            <div class="contact_form">
              <form action="" id="contactForm" method="post">
                <ul>
                  <li><label for="contactName">Name</label><input name="contactName" id="contactName" value="Name" class="input_item requiredField" type="text" onclick="if(this.value=='Name')this.value='';" onblur="if(this.value=='')this.value='Name';" /></li>
                  <li><label for="contactEmail">Email</label><input name="contactEmail" id="contactEmail" value="Email" class="input_item requiredField email" type="text" onclick="if(this.value=='Email')this.value='';" onblur="if(this.value=='')this.value='Email';" /></li>
                  <li class="message"><label for="contactMessage">Mesajınız</label><textarea rows="5" cols="10" name="contactMessage" id="contactMessage" class="requiredField">Mesajınız</textarea></li>
                  <li><span class="required">Tüm Alanları Doldurunuz.</span> <input type="submit" name="submit" id="submit" value="Gönder" class="submit" /></li>
                </ul>
              </form>
            </div>
            <!-- / contact form -->
            
            <!-- get in touch -->
            <div class="get_in_touch">
              <h4>Buralardan Ulaşabilirsiniz.</h4>
              <ul>
                <li class="home">Lorem Ipsum Street, no.12 12062 Yogyakarta Indonesia</li>
                <li class="phone">(021) 123 456 789</li>
                <li class="email"><a href="mailto:email@yourdomain.com">email@yourdomain.com</a></li>
                <li class="twitter"><a href="http://twitter.com/instantshift">instantshift</a></li>
                <li class="facebook"><a href="http://twitter.com/instantshift">instantshift</a></li>
              </ul>
            </div>
            <!-- / get in touch -->
          
          </div>
          <!-- / contact -->
        </div>    
      
      </div>
      <span class="availability">available</span>
    </div>
  </div>
  <!-- / main body -->
  
  <!-- footer -->
  <div id="footer">
    Copyright &copy; 2014 Reşit Coşkun<br />
    <small>Designed by <a href="http://gedikuni.com/">Reşit Coşkun</a> and developed by <a href="http://gedikuni.com/">Reşit Coşkun</a> Tüm Hakları  <a href="http://gedikuni.com/">Saklıdır.</a></small>.
  </div>
  <!-- / footer -->

</div>
<!-- / wrapper -->

</body>
</html>
<?php } ?>
Oturum başlatılırsa menüdeki S.S.S yerin Ödev yazıcak ama yazmıyor sql kodları config dosyası fln tamamdır sıkıntı yok onlarda nerede yanlış yapıyorum.

Alt alta ikisinide gösteriyor yani hem oturum açılmamış halini hem oturum açılmış halini