/*!
 * liScroll 1.0
 * Examples and documentation at: 
 * http://www.gcmingati.net/wordpress/wp-content/lab/jquery/newsticker/jq-liscroll/scrollanimate.html
 * 2007-2010 Gian Carlo Mingati
 * Version: 1.0.2 (30-MARCH-2009)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 * Requires:
 * jQuery v1.2.x or later
 * 
 */


jQuery.fn.liScroll = function (settings) {
    settings = jQuery.extend({
        travelocity: 0.07,
        rssUrl: "",
        imgUrl: ""
    }, settings);
    return this.each(function () {
        var $strip = jQuery(this);
        $strip.addClass("newsticker");
        var stripWidth = 0;
        var $mask = $strip.wrap('<div class="mask"></div>');
        var $tickercontainer = $strip.parent().wrap('<div class="tickercontainer"></div>');
        var imgHtml = '<a href="' + settings.rssUrl + '" title="Click here to subscribe to this RSS news feed">'
                        + '<img src="' + settings.imgUrl + '" alt="Click here to subscribe to this RSS news feed" /></a>';
        $j('.tickercontainer').prepend(imgHtml);
        var containerWidth = $strip.parent().parent().width(); //a.k.a. 'mask' width 	
        $strip.find("li").each(function (i) {
            stripWidth += jQuery(this, i).outerWidth(true) + 60; // thanks to Michael Haszprunar
        });
        $strip.css("width", stripWidth);
        var totalTravel = stripWidth + containerWidth;
        var defTiming = totalTravel / settings.travelocity; // thanks to Scott Waye		
        function scrollnews(spazio, tempo) {
            $strip.animate({ left: '-=' + spazio }, tempo, "linear", function () { $strip.css("left", containerWidth); scrollnews(totalTravel, defTiming); });
        }
        scrollnews(totalTravel, defTiming);
        $strip.hover(function () {
            jQuery(this).stop();
        },
				function () {
				    var offset = jQuery(this).offset();
				    var residualSpace = offset.left + stripWidth;
				    var residualTime = residualSpace / settings.travelocity;
				    scrollnews(residualSpace, residualTime);
				});
    });
};