var submitformOn = new Image();
	var submitformOff = new Image();	
	var homeOn = new Image();
	var homeOff = new Image();
	var productsOn = new Image();
	var productsOff = new Image();
	var otherproductsOn = new Image();
	var otherproductsOff = new Image();	
	var contactOn = new Image();
	var contactOff = new Image();

function setPicky(imageName, image, imagePath)
{
	if (image.src == '')
	{
		image.src = imagePath;
	}
	document.images[imageName].src = image.src;
}

function validateLogin()
{
	var bValid;
	bValid = true;

	if (document.forms['login'].username.value=='')
	{
		alert('You must enter a Username.');
		bValid = false;
	}
	
	if ((bValid) && (document.forms['login'].password.value==''))
	{
		alert('You must enter a Password.');
		bValid = false;
	}
	
	return bValid;	
}

function validateCallBack()
{
	var bValid;
	bValid = true;

	if (document.forms['callback'].name.value=='')
	{
		alert('You must enter a Name.');
		bValid = false;
	}
	
	if ((bValid) && (document.forms['callback'].telephone.value==''))
	{
		alert('You must enter a Telephone number.');
		bValid = false;
	}
	
	if (bValid)
	{
		alert('Thank you for requesting a call back.\n\nSabtek International will only call\nback UK based numbers.\n\nIf you are outside the UK,\nplease send an email.')
	}
	
	return bValid;
}