var naziv;
var http3;
var total;
var objekt;
function getPopust(obj)
{
	if(document.getElementById('promo').value == '')
	{
		obj.submit();
		return false;
	}
	
	
	
	
	objekt = obj;
		
		
		http3=GetXmlHttpObject();
	
	
	
	
	
	if (http3==null)
	
	 {
	
	 alert ("Browser does not support HTTP Request");
	
	 return;
	
	 }
	
	
		
		//var return_value = document.getElementById('return').value;
		

			
			
			
			
	var url="popust.php";
	
	
	
	var id = document.getElementById('promo').value;
	
	
	var return_value = objekt.elements['return'].value;
	
	
	return_value = return_value.substr( return_value.search('s=') + 2   );

	

	
	
	url=url+"?sid="+Math.random();
	
	url=url+"&id="+ id;
	url=url+"&return_value="+ return_value;
	

	
	//prompt("",url);
	
	
	
	
	http3.onreadystatechange=popustReady;
	
	
	
	
	
	http3.open("GET",url,true);
	
	http3.send(null);
	

}







function popustReady() 

{ 

	if (http3.readyState==4 || http3.readyState=="complete")

	{ 

 	

		var Response = http3.responseText;

		//alert(Response);
		var silver = Value(Response , "silver");
		
		//var golden = Value(Response , "golden");
		//alert(silver);
		//alert(golden);
		if (silver.length > 0)
		{
			
		
			var package_name = Value(Response , 'package_name');
			var nid = Value(Response , "nid");
			alert('Your promotion code is correct, discount is calculated.');
			
			
			
			/*document.forms[1].a3.value = silver;
			document.forms[1].item_name.value = package_name;
			document.forms[1].item_number.value = nid;*/
			
			objekt.elements['amount'].value = silver;
			objekt.elements['item_name'].value = package_name;
			objekt.elements['item_number'].value = nid;
			
			//alert(package_name);
			
			/*document.forms[2].a3.value = silver;
			document.forms[2].item_name.value = package_name;
			document.forms[2].item_number.value = nid;*/
			
			
			//document.getElementsByName('a3').item(0).value = silver;
			//document.getElementById('item_name').value =  package_name;
			//document.getElementById('item_number').value = nid;

		}
		else
		{
			//alert('Nema popust');	
		}
		/*if (silver.length > 0)
		{
			document.getElementsByName('a3').item(1).value = golden;
			
			//document.getElementById('goldenPrice').value = golden;	
		}*/
		//document.getElementById('paypalForm').submit();		
	
		objekt.submit();
	
		 

		

 	}

}