function movePicturesLarge(imageNumber)
{
	document.getElementById("picturesLarge").innerHTML=gvaPicturePictures[imageNumber];
	document.getElementById("controlsText").innerHTML=gvaPictureText[imageNumber];
}

function movePicturesSmall(imageNumber,totalNumber,viewNumber)
{
	offSet = imageNumber * -84
	document.getElementById("picturesSmall").style.top=offSet+"px";
	imageNumberUp = imageNumber - 1
	imageNumberDown = imageNumber + 1
	if (imageNumberUp < 0)
	{
		document.getElementById("controlsUp").innerHTML = "<img src=\"images/arrow_up_off.gif\" alt=\"\" />"
	}
	else
	{
		document.getElementById("controlsUp").innerHTML = "<a href=\"javascript:movePicturesSmall(" + imageNumberUp + "," + totalNumber + "," + viewNumber + ")\"><img src=\"images/arrow_up_on.gif\" alt=\"scroll thumbnails up\" /></a>"
	}
	if (imageNumberDown > totalNumber-viewNumber)
	{
		document.getElementById("controlsDown").innerHTML = "<img src=\"images/arrow_down_off.gif\" alt=\"\" />"
	}
	else
	{
		document.getElementById("controlsDown").innerHTML = "<a href=\"javascript:movePicturesSmall(" + imageNumberDown + "," + totalNumber + "," + viewNumber + ")\"><img src=\"images/arrow_down_on.gif\" alt=\"scroll thumbnails down\" /></a>"
	}
	
}

function checkBrochure(obj)
{
	if (obj.ffTitle.value == "")
	{
		alert("Please enter a value for \"title\"")
		obj.ffTitle.focus()
		return false
	}

	if (obj.ffFname.value == "")
	{
		alert("Please enter a value for \"forename\"")
		obj.ffFname.focus()
		return false
	}

	if (obj.ffSname.value == "")
	{
		alert("Please enter a value for \"surname\"")
		obj.ffSname.focus()
		return false
	}

	if (obj.ffEmail.value == "")
	{
		alert("Please enter a value for \"email address\"")
		obj.ffEmail.focus()
		return false
	}

	if (obj.ffAddress1.value == "")
	{
		alert("Please enter a value for \"address line 1\"")
		obj.ffAddress1.focus()
		return false
	}

	if (obj.ffTown.value == "")
	{
		alert("Please enter a value for \"town\"")
		obj.ffTown.focus()
		return false
	}

	if (obj.ffPcode.value == "")
	{
		alert("Please enter a value for \"postcode\"")
		obj.ffPcode.focus()
		return false
	}

	obj.submit()
	return true
}