// Parametrage dans le script : script_call.js
// Necessite Jquery
// http://www.spipmac.coinweb.net/?Diaporama-en-jQuery-sans-Innerfade
$.fn.slideshow = function(options) {

	var settings = {

		timeout: '2000',

		type: 'sequence'
	}

	if(options)

		$.extend(settings, options);

	this.css('position', 'relative');

	var slides = this.find('img').get();

	for ( var i = 0; i < slides.length; i++ ) {

		$(slides[i]).css('zIndex', slides.length - i).css('position', 'absolute').css('top', '0').css('left', '0');
	}

	if ( settings.type == 'sequence' ) {

		setTimeout(function(){

			$.slideshow.next(slides, settings, 1, 0);

		}, settings.timeout);
	}

	else if ( settings.type == 'random' ) {

		setTimeout(function(){

			do { current = Math.floor ( Math.random ( ) * ( slides.length ) ); } while ( current == 0 )

			$.slideshow.next(slides, settings, current, 0);

		}, settings.timeout);
	}

	else {

		alert('type must either be \'sequence\' or \'random\'');
	}
};

$.slideshow = function() {}

$.slideshow.next = function (slides, settings, current, last) {

	for (var i = 0; i < slides.length; i++) {

		$(slides[i]).css('display', 'none');
	}

	$(slides[last]).css('display', 'block').css('zIndex', '0');

	$(slides[current]).css('zIndex', '1').fadeIn('slow');

	if ( settings.type == 'sequence' ) {

		if ( ( current + 1 ) < slides.length ) {

			current = current + 1;

			last = current - 1;
		}

		else {

			current = 0;

			last = slides.length - 1;
		}
	}

	else if ( settings.type == 'random' ) {

		last = current;

		while (	current == last ) {

			current = Math.floor ( Math.random ( ) * ( slides.length ) );
		}
	}

	else {
		alert('type must either be \'sequence\' or \'random\'');
	}

	setTimeout((function(){$.slideshow.next(slides, settings, current, last);}), settings.timeout);
}