//AJAX request for a new dropdown with subcategory contents
function updateDropdown (elementID)
{
	//Select the element we want to get the ID from
	var elWithData = document.getElementById('catDropdown['+elementID+']');
	
	//Get ID of category to fetch
	if (elWithData != null)
	{
		categoryToSelect = elWithData.value;
	}
	else
	{
		categoryToSelect = '0';
	}
	
	//Update page using AJAX call
	if (categoryToSelect && categoryToSelect != '0')
	{
		updatePage ('http://www.gotop100.com/ajax/ajax_subdirectories.php?dirCat='+categoryToSelect+'&selectID='+(elementID+1));
	}
	else
	{
		updatePage ('http://www.gotop100.com/ajax/ajax_subdirectories.php?reset=1&selectID='+(elementID+1));
	}
}