if (window.XMLHttpRequest) 
 { 
        OAJAX = new XMLHttpRequest(); 
 }  else if (window.ActiveXObject) 
 { 
        OAJAX = new ActiveXObject("Microsoft.XMLHTTP"); 
 }  
 
 function laduj_strone(strona)
 {  
         var tresc=document.getElementById('tresc');
         var tresc_id = document.getElementById('tresc_id');
         OAJAX.open("GET", 'http://toczeniewdrewnie.pl/include/'+strona+'.php');
         
         OAJAX.onreadystatechange = function() 
         {
                 if (OAJAX.readyState == 4)
                 {
                         tresc.innerHTML=OAJAX.responseText;
                         window.location.href='#'+strona; //zmieniamy id # strony
                 }
                 if (OAJAX.readyState != 4)
                 {
                         tresc.innerHTML='<center><img src="images/wait1.gif" border="0"><br>Ładowanie zawartości... Proszę czekać...</center>'; 
                         tresc_id.name=strona;          
                 }
         } 
        OAJAX.send(null); 
        if(OAJAX){
        return false;
        }else{
        return true;
        }
}