function checkUploadForm()
{
	var returnfalse = false;
	var filename = document.uploadForm.photo.value;
	var split = filename.split(".").reverse();
	var accepted = new Array("JPG", "JPEG", "GIF", "PNG");

	var i;
	var found;
	for(i in accepted)
	{
		if(accepted[i] == split[0].toUpperCase())
		{
			found = "yes";
		}
	}

	if(found != "yes" && filename)
	{
		document.getElementById('warningfile').innerHTML = "<font color='red'>Only the following extensions are allowed: " + accepted;
		returnfalse = true;
	}
	else if(!filename)
	{
		document.getElementById('warningfile').innerHTML = "<font color='red'>Please select a photo</font>";
		returnfalse = true;
	}
	else
	{
		document.getElementById('warningfile').innerHTML = "&nbsp;";
		returnfalse = false;
	}

	var checkSelect = new Array("country", "city");

	var i;
	for(i in checkSelect)
	{
		if(document.getElementById(checkSelect[i] + '_text').value == "" && document.getElementById(checkSelect[i] + '_select').value == "none")
		{
			document.getElementById('warning' + checkSelect[i]).innerHTML = "<font color='red'>Please fill something in</font>";
		    returnfalse = true;
		}
	}

	if(returnfalse)
	{
		return false;
	}
}

function checkSelect(selectName)
{
	if(selectName == "aircraft" && document.getElementById("aircraft").value != "Other")
	{
		document.getElementById("airmanu_text").value = "";
		document.getElementById("airgenname_text").value = "";
		document.getElementById("airver_text").value = "";
		document.getElementById("aircraft_hidden").style.display = "none";
	}
	else if(selectName == "aircraft" && document.getElementById("aircraft").value == "Other")
	{
		document.getElementById("aircraft_hidden").style.display = "block";
	}

	if(selectName == "airline" && document.getElementById("airline").value != "Other")
	{
		document.getElementById("airline_text").value = "";
		document.getElementById("airline_hidden").style.display = "none";
	}
	else if(selectName == "airline" && document.getElementById("airline").value == "Other")
	{
		document.getElementById("airline_hidden").style.display = "block";
	}

	if(selectName == "coai" && document.getElementById("coai").value != "Other")
	{
		document.getElementById("country_text").value = "";
		document.getElementById("airport_text").value = "";
		document.getElementById("airportcode_text").value = "";
		document.getElementById("coai_hidden").style.display = "none";
	}
	else if(selectName == "coai" && document.getElementById("coai").value == "Other")
	{
		document.getElementById("coai_hidden").style.display = "block";
	}

	if(selectName == "country" && document.getElementById("country_select").value == "VW5rbm93bg==")
	{
		document.getElementById("city_select").selectedIndex = 0;
		document.getElementById("city_hidden").value = "";
		document.getElementById("city_hidden").style.display = "none";
		document.getElementById("city_select").disabled = true;

		document.getElementById("airport_select").selectedIndex = 0;
		document.getElementById("airport_hidden").value = "";
		document.getElementById("airport_hidden").style.display = "none";
		document.getElementById("airport_select").disabled = true;
	}
	else if(selectName == "country" && document.getElementById("country_select").value != "VW5rbm93bg==")
	{
		document.getElementById("city_select").disabled = false;
	}

	if(selectName == "city" && document.getElementById("city_select").value == "VW5rbm93bg==")
	{
		document.getElementById("airport_select").selectedIndex = 0;
		document.getElementById("airport_hidden").value = "";
		document.getElementById("airport_hidden").style.display = "none";
		document.getElementById("airport_select").disabled = true;
	}
	else if(selectName == "city" && document.getElementById("city_select").value != "VW5rbm93bg==")
	{
		document.getElementById("airport_select").disabled = false;
	}

	if(selectName != "aircraft")
	{
		if(document.getElementById(selectName + "_select").value == "T3RoZXI=")
		{
			document.getElementById(selectName + "_hidden").style.display = "block";
		}
		else
		{
			document.getElementById(selectName + "_hidden").value = "";
			document.getElementById(selectName + "_hidden").style.display = "none";
		}
	}
}