echo "<script type=\"text/javascript\" src=\"js/jquery-1.4.2.min.js\"></script> 
    <script type=\"text/javascript\"> 
    $(document).ready(function(){ 
      $('a').click(function(){ 
        var pageName = $(this).attr('page-name'); 
        $('#sayfa').load(pageName); 
      }); 
    }); 
    </script> 
  "; 
  echo "<div><a href=\"#\" page-name=\"sayfa1.php\">tıkla1</a></div>\n"; 
  echo "<div><a href=\"#\" page-name=\"sayfa2.php?qwe=123\">tıkla2</a></div>\n"; 
   
  echo "<div id=\"sayfa\"></div>\n";

echo "<script type=\"text/javascript\" src=\"js/jquery-1.4.2.min.js\"></script> 
    <script type=\"text/javascript\"> 
    $(document).ready(function(){ 
      $('#asd').click(function(){ 
        var pageName = $(this).attr('page-name'); 
        $('#sayfa').load(pageName); 
      }); 
    }); 
    </script> 
  "; 
  echo "<div><a href=\"#\" id=\"asd\" page-name=\"sayfa1.php\">tıkla1</a></div>\n"; 
  echo "<div><a href=\"#\" id=\"asd\" page-name=\"sayfa2.php?qwe=123\">tıkla2</a> 
  </div>\n"; 
   
  echo "<div id=\"sayfa\"></div>\n";