function news_feed_remove_news_feed( id ) {
    $('news_feed_'+id).setOpacity(0.4);
    
    new Ajax.Request('ajax.php',
    { parameters: { "ajax": 'ajax_news_feed_remove.php', "id": id },
      onSuccess: function(response) {
   	    responseVal = response.responseText;
   	    if (responseVal) {
		        $('news_feed_'+id).hide();
   	    }
   	    else {
		        alert ('Could not remove news feed');
   	    }
		    },
      onFailure: function(){ alert('Could not remove news feed...') }
    });
}