function calculate(ident)
{
	//name = encodeURIComponent(document.getElementById("idrr").value);
	if(ident==25)
	{
		procent = document.getElementById('procent').value;
		okres = document.getElementById('okres').value;
		kwota = document.getElementById('kwota').value;
		var url='calc_req.php?id=25&procent='+procent+'&okres='+okres+'&kwota='+kwota;
	}
	else if(ident==26)
	{
		procent = document.getElementById('procent').value;
		okres = document.getElementById('okres').value;
		kwota = document.getElementById('kwota').value;
		czestosc = document.getElementById('czestosc').selectedIndex;
		var url='calc_req.php?id=26&procent='+procent+'&okres='+okres+'&kwota='+kwota+'&czestosc='+czestosc;
	}
	else if(ident==27)
	{
		var url='calc_req.php?id=27&'+ name;
	}
	else if(ident==28)
	{
		var url='calc_req.php?id=28&'+ name;
	}
	else if(ident==29)
	{
		var url='calc_req.php?id=29&'+ name;
	}
	else if(ident==30)
	{
		var url='calc_req.php?id=30&'+ name;
	}
	else if(ident==31)
	{
		var url='calc_req.php?id=31&'+ name;
	}
	else if(ident==32)
	{
		var url='calc_req.php?id=32&'+ name;
	}
	else if(ident==33)
	{
		var url='calc_req.php?id=33&'+ name;
	}
	else if(ident==34)
	{
		var url='calc_req.php?id=34&'+ name;
	}
	else if(ident==35)
	{
		var url='calc_req.php?id=35&'+ name;
	}
	http_request = false;
	if (window.XMLHttpRequest) 
	{ // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) 
		{
			http_request.overrideMimeType('text/xml');
			// Przeczytaj o tym wierszu ponizej
		}
	} 
	else if (window.ActiveXObject) 
	{ // IE
		try 
		{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) 
		{
			try 
			{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) {}
		}
	}
	if (!http_request) 
	{
		alert('Can not create XMLHTTP object!');
		return false;
	}
	http_request.onreadystatechange = function() { alertContents(http_request); };
	http_request.open('GET', url, true);
	http_request.send(null);

}
function alertContents(http_request,dislay_res) 
{
	if (http_request.readyState == 4)
	{
		if (http_request.status == 200)
		{
			stattus = http_request.responseText;
			document.getElementById("ret_box").innerHTML = stattus;
			//setTimeout('calc()', 30000);
		}
		else
		{
			//alert('Query error!');
			document.getElementById("ret_box").innerHTML = 'Błąd zapytania!';
		}
	}
}