/*
*
* Copyright (c) 2006-2008 Sam Collett (http://www.texotela.co.uk)
* Licensed under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
* 
* Version 2.0.2
* Demo: http://www.texotela.co.uk/code/jquery/newsticker/
*
* $LastChangedDate$
* $Rev$
*
*/

(function($) {
    /*
    * A basic news ticker.
    *
    * @name     newsticker (or newsTicker)
    * @param    delay      Delay (in milliseconds) between iterations. Default 4 seconds (4000ms)
    * @author   Sam Collett (http://www.texotela.co.uk)
    * @example  $("#news").newsticker(); // or $("#news").newsTicker(5000);
    *
    */
    $.fn.newsTicker = $.fn.newsticker = function(delay) {
        delay = delay || 4000;
        initTicker = function(el) {
            $.newsticker.clear(el);
            el.items = $("li", el);
            // hide all items (except first one)
            el.items.not(":eq(0)").hide().end();
            // current item
            el.currentitem = 0;
            startTicker(el);
        };
        startTicker = function(el) {
            el.tickfn = setInterval(function() { doTick(el) }, delay)
        };
        doTick = function(el) {
            // don't run if paused
            if (el.pause) return;
            // pause until animation has finished
            $.newsticker.pause(el);
            // hide current item

            $(el.items[el.currentitem]).animate({ "left": "-=900px" }, "slow",
			function() {
			    $(this).hide();
			    $(this).css("left", ""); // put it back where it was
			    // move to next item and show
			    el.currentitem = ++el.currentitem % (el.items.size());
			    $(el.items[el.currentitem]).css("left", "900px");
			    $(el.items[el.currentitem]).show();
			    $(el.items[el.currentitem]).animate({ "left": "-=900px" }, "slow",
					function() {
					    $(this).css("left", "");
					    $.newsticker.resume(el);
					}
				);
			}
		);
        };
        this.each(
		function() {
		    if (this.nodeName.toLowerCase() != "ul") return;
		    initTicker(this);
		}
	)
	.addClass("newsticker")
	.hover(
		function() {
		    // pause if hovered over
		    $.newsticker.pause(this);
		},
		function() {
		    // resume when not hovered over
		    $.newsticker.resume(this);
		}
	);
        return this;
    };


    $.newsticker = $.newsTicker =
{
    pause: function(el) {
        (el.jquery ? el[0] : el).pause = true;
    },
    resume: function(el) {
        (el.jquery ? el[0] : el).pause = false;
    },
    clear: function(el) {
        el = (el.jquery ? el[0] : el);
        clearInterval(el.tickfn);
        el.tickfn = null;
        el.items = null;
        el.currentItem = null;
    }
}

})(jQuery);