/*!
 * 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, tempo);
			});
		}
		function resume(){
			var offset = $strip.offset();
			var residualSpace = offset.left + stripWidth;
			var residualTime = residualSpace/settings.travelocity;
			scrollnews(residualSpace, residualTime);
		}
		scrollnews(totalTravel, defTiming);
		$strip.hover(
			function(){
				$strip.stop();
			},
			function(){
				resume();
			}
		);	
		
	});	
};