/*!
 * 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,
		widthAdd: 0	//add an amount to the overall width for each list item.  tweaking this can help to fix certain browsers.
		}, 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){
						var $current = jQuery(this, i);
						$current.css('white-space', 'nowrap');
						stripWidth += $current.outerWidth(true); // thanks to Michael Haszprunar
						stripWidth += parseInt(settings.widthAdd);
					});
					$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);
								}
							);			
		});	
};