/* =========================================================

// jquery.innerfade.js

// Datum: 2007-01-29
// Firma: Medienfreunde Hofmann & Baldes GbR
// Autor: Torsten Baldes
// Mail: t.baldes@medienfreunde.com
// Web: http://medienfreunde.com

// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/

// ========================================================= */


(function($) {

$.fn.innerfade = function(options) {

 this.each(function(){

 var settings = {
 animationtype: 'fade',
 speed: 'normal',
 timeout: 2000,
 type: 'sequence',
 containerheight: 'auto',
 runningclass: 'innerfade'
 };

 if(options)
 $.extend(settings, options);

 var elements = $(this).children();

 if (elements.length > 1) {

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

 $(this).css('height', settings.containerheight);
 $(this).addClass(settings.runningclass);

 for ( var i = 0; i < elements.length; i++ ) {
 $(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute');
 $(elements[i]).hide();
 };

 if ( settings.type == 'sequence' ) {
 setTimeout(function(){
 $.innerfade.next(elements, settings, 1, 0);
 }, settings.timeout);
 $(elements[0]).show();
 } else if ( settings.type == 'random' ) {
 setTimeout(function(){
 do { current = Math.floor ( Math.random ( ) * ( elements.length ) ); } while ( current == 0 )
 $.innerfade.next(elements, settings, current, 0);
 }, settings.timeout);
 $(elements[0]).show();
 } else {
 alert('type must either be \'sequence\' or \'random\'');
 }

 }

 });
};


$.innerfade = function() {}
$.innerfade.next = function (elements, settings, current, last) {

 if ( settings.animationtype == 'slide' ) {
 $(elements[last]).slideUp(settings.speed, $(elements[current]).slideDown(settings.speed));
 } else if ( settings.animationtype == 'fade' ) {
 $(elements[last]).fadeOut(settings.speed);
 $(elements[current]).fadeIn(settings.speed);
 } else {
 alert('animationtype must either be \'slide\' or \'fade\'');
 };

 if ( settings.type == 'sequence' ) {
 if ( ( current + 1 ) < elements.length ) {
 current = current + 1;
 last = current - 1;
 } else {
 current = 0;
 last = elements.length - 1;
 };
 } else if ( settings.type == 'random' ) {
 last = current;
 while ( current == last ) {
 current = Math.floor ( Math.random ( ) * ( elements.length ) );
 };
 } else {
 alert('type must either be \'sequence\' or \'random\'');
 };
 setTimeout((function(){$.innerfade.next(elements, settings, current, last);}), settings.timeout);
};
})(jQuery);