function loader(check)
   {
       var xmlhttp;
       var link = document.getElementById('link').value;
       var kod = document.getElementById('kod').value;

       if (!check)
       {
           link = '';
       }

       if (link!="")
       {               
		 	  var load = '<center><div style="width: 300px; height: 100px; border: 1px solid #8080FF;"><BR><img src="images/loader.gif" alt=""><BR><BR>Trwa obliczanie wartości. Zaczekaj chwilę...</div></center>';
           document.getElementById('output').innerHTML = load;

           var url = 'modules/wycena.php';
           var pars = 'link=' + link + '&kod=' + kod + '';
           url = 'modules/wycena.php?' + 'link=' + link + '&kod=' + kod + '';
			  document.getElementById('link').value = 'trwa obliczanie wartości...';	
			  document.getElementById('kod').value = '...';	
           xmlhttp = null;
           if (window.XMLHttpRequest)
           {
               xmlhttp = new XMLHttpRequest();
           }
           else if (window.ActiveXObject)
           {
               xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
           }
                      if (xmlhttp!=null)
           {
					xmlhttp.open("GET", url, true);	
               xmlhttp.onreadystatechange = function() {
                   if (xmlhttp.readyState==4)
                   {
                       var finish = xmlhttp.responseText;
                       document.getElementById('output').innerHTML = finish;
				  			  document.getElementById('link').value = '';		
							  document.getElementById('kod').value = '';
							  document.getElementById('captcha').src = 'captcha.php?cache='+Math.random();	
                   }
               };
                              xmlhttp.send(null);
               void(0);
           }
           else
           {
               alert("Your browser does not support XMLHTTP.");
           }
							  
       }
   }