function aRequest(url, params, maDiv)
{
    var myAjax = new Ajax.Request(
            url,
            {
				method: 'post',
				parameters: params,
				onSuccess: function(transport)
				{
					$(maDiv).innerHTML = transport.responseText;
				}
            }
  );
}

function cleanContactDiv()
{
  new Effect.Fade('erreurs');
  document.getElementById('nom').value = '';
  document.getElementById('email').value = '';
  document.getElementById('profession').value = '';
  document.getElementById('message').value = '';
  document.getElementById('message').innerHTML = '';
}

function loadImages(increment)
{
  var myAjax = new Ajax.Request(
            'getImages.php',
            {
				method: 'get',
				onSuccess: function(transport)
				{
					images_list = transport.responseText.evalJSON();
					if (num_image >= images_list.length)
					  num_image = images_list.length - 1;
					if (num_image < 0)
					  num_image = 0;
					if (images_list.length > 0)
					{
					  for (i = 0; i < images_list.length; i++)
					  {
					    document.getElementById('img-' + i).style.display = 'none';
					  }
					  document.getElementById('img-' + num_image).style.display = 'inline';
					}
					
				}
            }
  );
  num_image = parseInt(num_image) + parseInt(increment);
}