function wyborTerminuSzkoly(gr)
{
	var status = document.getElementById("grupyPraktyczne");
	status.innerHTML = 'Pobieram dane...';
	
	
	var XMLHttpRequestObject = false;
	if (window.XMLHttpRequest)
	{
		XMLHttpRequestObject = new XMLHttpRequest();
	} else if (window.ActiveXObject)
	{
		XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP")
	}
	
	if (XMLHttpRequestObject)
	{
		XMLHttpRequestObject.open("POST","ajax.php");
		XMLHttpRequestObject.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		
		XMLHttpRequestObject.onreadystatechange = function()
		{
			if(XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200)
			{
				opis = XMLHttpRequestObject.responseText;
				status.innerHTML = opis;
			}
		}
		
		XMLHttpRequestObject.send("wybranyTerminSzkoly="+gr+"&ajax=grupyPraktyczne");
	}

}