function disable_checkbox()
{
	//alert("aa");
	
	//alert(document.getElementById("cartype").value);
	if (document.getElementById("cartype").value=="economy_0")
	{
		document.getElementById("fees-6").disabled=true;
		document.getElementById("fees-7").disabled=true;
		document.getElementById("fees-8").disabled=true;
		document.getElementById("fees-9").disabled=true;
		document.getElementById("fees-12").disabled=true;
	}
	else
	{
		document.getElementById("fees-6").disabled=false;
		document.getElementById("fees-7").disabled=false;
		document.getElementById("fees-8").disabled=false;
		document.getElementById("fees-9").disabled=false;
		document.getElementById("fees-12").disabled=false;
	}


}


function disable_select(pom)
{
  //alert(pom.selectedIndex);
  var sel = document.getElementById("pobocka_do");
  sel.disabled = true;
  sel.options[pom.selectedIndex].selected = true;  
}