// JavaScript Document
function mycarousel_initCallback(carousel, state)
{
    // Lock until all items are loaded. That prevents jCarousel from
    // setup correctly and we have to do that in the ajax callback
    // function with carousel.setup().
    // We're doing that because we don't know the exact height of each
    // items until they are added to the list.
    carousel.clip.hover(function() {
        carousel.stopAuto();
    }, function() {
        carousel.startAuto();
    });
	
	carousel.lock();

    jQuery.get(
        'special_textscroller.php',
        {
            'feed': 'http://jquery.com/blog/feed/atom/'
        },
        function(xml) {
            mycarousel_itemAddCallback(carousel, xml);
        },
        'xml'
    );
};

function mycarousel_itemAddCallback(carousel, xml)
{
    var $items = jQuery('item', xml);

    $items.each(function(i) {
        carousel.add(i + 1, mycarousel_getItemHTML(this));
    });

    carousel.size($items.size());

    // Unlock and setup.
    carousel.unlock();
    carousel.setup();
};

function mycarousel_itemVisibleInCallback(carousel, item, i, state, evt)
{
    // The index() method calculates the index from a
    // given index who is out of the actual item range.
    var idx = carousel.index(i, mycarousel_itemList.length);
    carousel.add(i, mycarousel_getItemHTML(mycarousel_itemList[idx - 1]));
};

function mycarousel_itemVisibleOutCallback(carousel, item, i, state, evt)
{
    carousel.remove(i);
};

/**
 * Item html creation helper.
 */
function mycarousel_getItemHTML(item)
{
	return '<table width="320px" height="170px" border="0" celpadding="0" celspacing="0"><tr><td width="100px"><img class="news_img" src="'+$('image', item).text()+'" /></td><td width="220px"><p><span class="news_header">'+$('title', item).text()+'</span><br /><span class="news_text">'+mycarousel_truncate($('description', item).text(), 350)+'</span><br /><a class="news_link" href="events.php#'+$('image', item).text()+'">leer m&aacute;s</a></p></td></tr></table>';
};

/**
 * Utility function for truncating a string without breaking words.
 */
function mycarousel_truncate(str, length, suffix) {
    if (str.length <= length) {
        return str;
    }

    if (suffix == undefined) {
        suffix = '...';
    }

    return str.substr(0, length).replace(/\s+?(\S+)?$/g, '') + suffix;
};

jQuery(document).ready(function() {
    /**
     * We show a simple loading indicator
     * using the jQuery ajax events
     */
    jQuery().ajaxStart(function() {
        jQuery(".jcarousel-clip-vertical").addClass('loading');
    });

    jQuery().ajaxStop(function() {
        jQuery(".jcarousel-clip-vertical").removeClass('loading');
    });

    jQuery('#mycarousel').jcarousel({
        vertical: true,
		start: 1,
		scroll: 1,
		auto: 5,
		wrap: 'last',
        initCallback: mycarousel_initCallback
    });
});