DOMAIN = "http://www.zabawki.cz/";




function getXMLHTTPRequest()
{
var req = false;
try
  {
    req = new XMLHttpRequest(); /* e.g. Firefox */
  }
catch(err1)
  {
  try
    {
     req = new ActiveXObject("Msxml2.XMLHTTP");
  /* some versions IE */
    }
  catch(err2)
    {
    try
      {
       req = new ActiveXObject("Microsoft.XMLHTTP");
  /* some versions IE */
      }
      catch(err3)
        {
         req = false;
        }
    }
  }
return req;
}


    var myRequest = getXMLHTTPRequest();

function addBasket(itemId) {
	amount = document.getElementById('amount').value;
	document.getElementById('basket').innerHTML = "<div id=\"empty\"><img src=\"http://www.zabawki.cz/images/ajax-loader.gif\"></div>";
	var url=DOMAIN+"basket.php?basket=add&prid="+itemId+"&amount="+amount;
	
	
	myRequest.open("GET", url, true);
	myRequest.onreadystatechange = updateBasket;
	myRequest.send(null);
}

function removeBasket(itemId) {
	var url="http://www.zabawki.cz/basket.php?basket=remove&prid="+itemId;
	myRequest.open("GET", url, true);
	myRequest.onreadystatechange = updateBasket;
	myRequest.send(null);
}



function updateBasket() {
    if(myRequest.readyState == 4) {
	    document.getElementById('basket').innerHTML = myRequest.responseText;
    }
}


function checkSearch( form ) {
	if (form.search.value == "" || form.search.value.length < 3 ) {
		alert('Zadejte hledaný výraz (min. 3 znaky)');
		form.search.focus();
		return false;
	}
	
	return true;
}
	
function checkForm() {
	var radio_choice = false;
	var license = false;
	if ( document.typ_dopravy.odber[0].checked ) radio_choice = true;
	if ( document.typ_dopravy.odber[1].checked ) radio_choice = true;
	if ( document.typ_dopravy.odber[2].checked ) radio_choice = true;
	if ( document.typ_dopravy.odber[3].checked ) radio_choice = true;
	
	if ( radio_choice == false ) {
		alert("Vyberte prosim způsob dopravy a platby");
		return radio_choice;
	}
	
	if (document.getElementById('license').checked) license = true;

	if ( license == false ) {
		alert("Musíte souhlasit se všeobecnými podminkami");
	}
		return license;	
}