/*!
 * 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
	},
	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 containerWidth = $strip.parent().parent().width(); //a.k.a. 'mask' width 	
		
		$strip.find("li").each(function(i) {
			stripWidth += jQuery(this, i).outerWidth(true); // thanks to Michael Haszprunar
		});
		
		$strip.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);
		});
	});
};