var expandedCat = null;

function swapImage(elementID, newSrc)
{
	document.getElementById(elementID).src = newSrc;
}

function zoomIn()
{
	var mapImage = document.getElementById("mapImage");

	var imagePath = mapImage.src.substring(mapImage.src.indexOf("images"), mapImage.src.length);

	if(imagePath == "images/find_us/map_1.gif")
	{
		mapImage.src = "images/find_us/map_2.gif";
	}
	else if(imagePath == "images/find_us/map_2.gif")
	{
		mapImage.src = "images/find_us/map_3.gif";
	}
	else if(imagePath == "images/find_us/map_3.gif")
	{
		mapImage.src = "images/find_us/map_4.gif";
	}
}

function zoomOut()
{
	var mapImage = document.getElementById("mapImage");

	var imagePath = mapImage.src.substring(mapImage.src.indexOf("images"), mapImage.src.length);

	if(imagePath == "images/find_us/map_4.gif")
	{
		mapImage.src = "images/find_us/map_3.gif";
	}
	else if(imagePath == "images/find_us/map_3.gif")
	{
		mapImage.src = "images/find_us/map_2.gif";
	}
	else if(imagePath == "images/find_us/map_2.gif")
	{
		mapImage.src = "images/find_us/map_1.gif";
	}
}

function expandCat(cat)
{
	var catList = document.getElementById("cat" + cat + "Row");

	if(catList.style.display == "none")
	{
		if(expandedCat != null)
		{
			document.getElementById("cat" + expandedCat + "Row").style.display = "none";
		}
		catList.style.display = "block";
		expandedCat = cat;
	}
	else
	{
		catList.style.display = "none";
		expandedCat = null;
	}
}

function submitForm()
{
	var d = document.appraisalForm;

	var message = "The following fields are required:\n";
	var message2 = "";

	if(d.companyName.value == "")
	{
		message2 = message2 + "\n - Company Name";
	}

	if(d.address1.value == "")
	{
		message2 = message2 + "\n - Address";
	}

	if(d.city.value == "")
	{
		message2 = message2 + "\n - Town/City";
	}


	if(d.county.value == "")
	{
		message2 = message2 + "\n - County";
	}

	if(d.postcode.value == "")
		{
			message2 = message2 + "\n - Post Code";
	}

	if(d.country.value == "")
		{
			message2 = message2 + "\n - Country";
	}

	if(d.telephone.value == "")
		{
			message2 = message2 + "\n - Telephone";
	}

	if(d.fax.value == "")
		{
			message2 = message2 + "\n - Fax";
	}

	if(d.email.value == "")
		{
			message2 = message2 + "\n - Email";
	}

	if(message2 == "")
	{
		d.submit();
	}
	else
	{
		alert(message + message2);
	}
}

function submitEnquiry()
{
	var d = document.contactForm;

	var message = "The following fields are required:\n";
	var message2 = "";

	if(d.name.value == "")
	{
		message2 = message2 + "\n - Name";
	}

	if(d.telephone.value == "")
		{
			message2 = message2 + "\n - Telephone";
	}

	if(d.email.value == "")
		{
			message2 = message2 + "\n - Email";
	}

	if(d.contact.value == 0)
	{
		message2 = message2 + "\n - Contact";
	}

	if(d.enquiry.value == 0)
	{
		message2 = message2 + "\n - Enquiry";
	}

	if(message2 == "")
	{
		d.submit();
	}
	else
	{
		alert(message + message2);
	}
}