var curnews = 0;
var titles = new Array();

$(document).ready (function() {
    $.ajax({
	type:     "POST",
	url:      "interface.php",
	data:   { action:'latestnews' },
	dataType: "xml",
	success: function(xml) {
	    $(xml).find('field').each(function(){
		var field_value = $(this).attr('value');
		titles[titles.length] = field_value;
	    }); //close each(
	    if ( titles.length ) showNextNews();
	},
	error: function(request,status,errorthrown) {
	    alert("Error occuded: "+status+' - '+errorthrown);  
	}
    });
});

function showNextNews() {
    if ( titles.length == 0 ) return false;
    $('.headerNews').fadeOut('slow',function() {
	$(this).fadeIn('slow').html('Latest News: '+titles[curnews]);
    })
    curnews = ( curnews < titles.length - 1 ) ? curnews + 1 : 0;
    setTimeout( showNextNews, 10000 );
}