var iPortrait = 0;
var iLastPortrait = 0;
var stopPortrait = false;
var aPortraits = new Array();

$(document).ready( function() {	
	$('div.portraits_planteurs .bloc_text .NewsSummary').hide();
	$('div.portraits_planteurs .bloc_text .NewsSummary').each(function(index, html_portrait) {
		aPortraits[index] = $(html_portrait);
	});
	
	if (aPortraits.length > 1)
	{
		$('#fleche_gauche_portrait').click(function() {
			stopPortrait = true;
			changePortrait(-1, true);
		});
		
		$('#fleche_droite_portrait').click(function() {
			stopPortrait = true;
			changePortrait(1, true);
		});
			
		function changePortrait(direction, ignore) {	
			if (!stopPortrait || ignore)
			{
				iLastPortrait = iPortrait;
				iPortrait += direction;
				if (iPortrait == aPortraits.length)
					iPortrait = 0;		
				if (iPortrait == -1)
					iPortrait = aPortraits.length - 1;	
								
				aPortraits[iLastPortrait].fadeOut(500, function() {
					aPortraits[iPortrait].fadeIn(500);
					$('#fleche_gauche_portrait').css('display', 'block');
					$('#fleche_gauche_portrait').css('left', ($('div.portraits_planteurs .bloc_text').offset().left + 1) + 'px');
					$('#fleche_gauche_portrait').css('top', ($('div.portraits_planteurs .bloc_text').offset().top + ($('div.portraits_planteurs .bloc_text').height() / 2) - 12) + 'px');
					$('#fleche_droite_portrait').css('display', 'block');
					$('#fleche_droite_portrait').css('left', ($('div.portraits_planteurs .bloc_text').offset().left + $('div.portraits_planteurs .bloc_text').width() + 19) + 'px');
					$('#fleche_droite_portrait').css('top', ($('div.portraits_planteurs .bloc_text').offset().top + ($('div.portraits_planteurs .bloc_text').height() / 2) - 12) + 'px');
				});
			}
		}
	
		changePortrait(1, false);
		setInterval(function() { changePortrait(1, false); }, 10000);	
	}
});