function check_images(form)
{
	if (form.thumbnail.value==null || form.thumbnail.value=="" || form.picture.value==null || form.picture.value=="")

		{
			alert("Main image AND thumbnail must be entered!\n\r\n\rThis is to ensure optimum website display.");
			return false;
		}
	else 
		{
			return true;
		}
}