JQuery 新闻头条淡入淡出效果

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新闻头条淡入淡出效果

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
<style>
a { color:#CCCCCC}
li { list-style:none;}
span { padding-right:20px; color:#FFFFFF; font-weight:bold;}
</style>
</head>
<body>
 <div id="ticker" style="padding:10px; background:#333333">
        <!-- START TICKER VER 1.0.1 -->
 <script src="http://jqueryjs.googlecode.com/files/jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript">
/* =========================================================
// jquery.innerfade.js
// Datum: 2008-02-14
// Firma: Medienfreunde Hofmann & Baldes GbR
// Author: Torsten Baldes
// Mail: t.baldes@medienfreunde.com
// Web: http://medienfreunde.com
// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/
// and Ralf S. Engelschall http://trainofthoughts.org/
 *
 *  <ul id="news">
 *      <li>content 1</li>
 *      <li>content 2</li>
 *      <li>content 3</li>
 *  </ul>
 *
 *  $('#news').innerfade({
 *	  animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'),
 *	  speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'),
 *	  timeout: Time between the fades in milliseconds (Default: '2000'),
 *	  type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'),
 * 		containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
 *	  runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
 *	  children: optional children selector (Default: null)
 *  });
 *
// ========================================================= */
(function($) {
    $.fn.innerfade = function(options) {
        return this.each(function() {
            $.innerfade(this, options);
        });
    };
    $.innerfade = function(container, options) {
        var settings = {
        		'animationtype':    'fade',
            'speed':            'normal',
            'type':             'sequence',
            'timeout':          2000,
            'containerheight':  'auto',
            'runningclass':     'innerfade',
            'children':         null
        };
        if (options)
            $.extend(settings, options);
        if (settings.children === null)
            var elements = $(container).children();
        else
            var elements = $(container).children(settings.children);
        if (elements.length > 1) {
            $(container).css('position', 'relative').css('height', settings.containerheight).addClass(settings.runningclass);
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css('z-index', String(elements.length-i)).css('position', 'absolute').hide();
            };
            if (settings.type == "sequence") {
                setTimeout(function() {
                    $.innerfade.next(elements, settings, 1, 0);
                }, settings.timeout);
                $(elements[0]).show();
            } else if (settings.type == "random") {
            		var last = Math.floor ( Math.random () * ( elements.length ) );
                setTimeout(function() {
                    do {
												current = Math.floor ( Math.random ( ) * ( elements.length ) );
										} while (last == current );
										$.innerfade.next(elements, settings, current, last);
                }, settings.timeout);
                $(elements[last]).show();
						} else if ( settings.type == 'random_start' ) {
								settings.type = 'sequence';
								var current = Math.floor ( Math.random () * ( elements.length ) );
								setTimeout(function(){
									$.innerfade.next(elements, settings, (current + 1) %  elements.length, current);
								}, settings.timeout);
								$(elements[current]).show();
						}	else {
							alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
						}
				}
    };
    $.innerfade.next = function(elements, settings, current, last) {
        if (settings.animationtype == 'slide') {
            $(elements[last]).slideUp(settings.speed);
            $(elements[current]).slideDown(settings.speed);
        } else if (settings.animationtype == 'fade') {
            $(elements[last]).fadeOut(settings.speed);
            $(elements[current]).fadeIn(settings.speed, function() {
							removeFilter($(this)[0]);
						});
        } else
            alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
        if (settings.type == "sequence") {
            if ((current + 1) < elements.length) {
                current = current + 1;
                last = current - 1;
            } else {
                current = 0;
                last = elements.length - 1;
            }
        } else if (settings.type == "random") {
            last = current;
            while (current == last)
                current = Math.floor(Math.random() * elements.length);
        } else
            alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
        setTimeout((function() {
            $.innerfade.next(elements, settings, current, last);
        }), settings.timeout);
    };
})(jQuery);
// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
	if(element.style.removeAttribute){
		element.style.removeAttribute('filter');
	}
}
</script>
<script type="text/javascript">
  jQuery.noConflict();
  // Use jQuery via jQuery(...)
     jQuery(document).ready(function(){
	jQuery('#news').innerfade({
						 speed: '1',
						 timeout: 2000,
						 containerheight: 20,
						 animationtype: 'fade'
	  });
	});
  </script>
        <ul id="news" style="overflow: hidden; display:block; margin:0; clear:both">
          <li style="z-index: 5; position: absolute; display: none;"><span>HOT NEWS</span><a href="#">Racing has begun at the 2009 AllegroCup Windsurfing Championship in ?eba, Poland. This event, organised by... </a></li>
          <li style="z-index: 4; position: absolute; display: none;"><span>HOT NEWS</span><a href="#">Sean is currently racing at the Euro-Challenger FW Event in Pobierowo, Poland. A small seaside town on the... </a></li>
          <li style="z-index: 3; position: absolute; display: list-item;"><span>HOT NEWS</span><a href="#">Sean will be joining the dark side of windsurfing this season, on the International Team for Point-7 sails.... </a></li>
          <li style="z-index: 2; position: absolute; display: none;"><span>HOT NEWS</span><a href="#">Sean's all new website for 2009 launched today! Stay tuned for features on many CSS galleries once more. The... </a></li>
          <li style="z-index: 1; position: absolute; display: none;"><span>HOT NEWS</span><a href="#">Sean has just arrived in Europe and settled in to his training-base in the Netherlands, preparing for this... </a></li>
        </ul>
        <!-- END TICKER -->
      </div>
</body>
</html>

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