我对 JavaScript 很陌生,对它的工作原理只有最基本的了解,所以请多多包涵。:) 我正在使用 jquery.innerfade.js 脚本为我正在开发的网站创建带有淡入淡出过渡的幻灯片,并且我添加了在“幻灯片”之间导航的导航按钮(设置为背景图像) . 导航按钮具有三种状态:默认/关闭、悬停和打开(每个状态都是单独的图像)。我创建了一个单独的 JavaScript 文档,以便在单击按钮时将它们设置为“打开”。“悬停”状态是通过 CSS 实现的。
幻灯片和导航按钮都很好用。我只想添加一件事:我希望相应的导航按钮显示为“打开”,而相关的“幻灯片”为“正在播放”。
这是HTML:
<div id="mainFeature">
<ul id="theFeature">
<li id="the1feature"><a href="#" name="#promo1"><img src="_images/carousel/promo1.jpg" /></a></li>
<li id="the2feature"><a href="#" name="#promo2"><img src="_images/carousel/promo2.jpg" /></a></li>
<li id="the3feature"><a href="#" name="#promo3"><img src="_images/carousel/promo3.jpg" /></a></li>
</ul>
<div id="promonav-con">
<div id="primarypromonav">
<ul class="links">
<li id="the1title" class="promotop"><a rel="1" href="#promo1" class="promo1" id="promo1" onMouseDown="promo1on()"><strong>Botox Cosmetic</strong></a></li>
<li id="the2title" class="promotop"><a rel="2" href="#promo2" class="promo2" id="promo2" onMouseDown="promo2on()"><strong>Promo 2</strong></a></li>
<li id="the3title" class="promotop"><a rel="3" href="#promo3" class="promo3" id="promo3" onMouseDown="promo3on()"><strong>Promo 3</strong></a></li>
</ul>
</div>
</div>
这里是 jquery.innerfade.js,我的修改:
(function($) {
$.fn.innerfade = function(options) {
return this.each(function() {
$.innerfade(this, options);
});
};
$.innerfade = function(container, options) {
var settings = {
'speed': 'normal',
'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();
};
this.ifchanger = setTimeout(function() {
$.innerfade.next(elements, settings, 1, 0);
}, settings.timeout);
$(elements[0]).show();
}
};
$.innerfade.next = function(elements, settings, current, last) {
$(elements[last]).fadeOut(settings.speed);
$(elements[current]).fadeIn(settings.speed, function() {
removeFilter($(this)[0]);
});
if ((current + 1) < elements.length) {
current = current + 1;
last = current - 1;
} else {
current = 0;
last = elements.length - 1;
}
this.ifchanger = 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');
}
}
jQuery(document).ready(function() {
jQuery('ul#theFeature').innerfade({
speed: 1000,
timeout: 7000,
containerheight: '291px'
});
// jQuery('#mainFeature .links').children('li').children('a').attr('href', 'javascript:void(0);');
jQuery('#mainFeature .links').children('li').children('a').click(function() {
clearTimeout(jQuery.innerfade.ifchanger);
for(i=1;i<5;i++) {
jQuery('#the'+i+'feature').css("display", "none");
//jQuery('#the'+i+'title').children('a').css("background-color","#226478");
}
// if(the_widths[(jQuery(this).attr('rel')-1)]==960) {
// jQuery("#vic").hide();
// } else {
// jQuery("#vic").show();
// }
// jQuery('#the'+(jQuery(this).attr('rel'))+'title').css("background-color", "#286a7f");
jQuery('#the'+(jQuery(this).attr('rel'))+'feature').css("display", "block");
clearTimeout(jQuery.innerfade.ifchanger);
});
});
以及我创建的单独的 JavaScript:
function promo1on() {document.getElementById("promo1").className="promo1on"; document.getElementById("promo2").className="promo2"; document.getElementById("promo2").className="promo2"; }
function promo2on() {document.getElementById("promo2").className="promo2on"; document.getElementById("promo1").className="promo1"; document.getElementById("promo3").className="promo3"; }
function promo3on() {document.getElementById("promo3").className="promo3on"; document.getElementById("promo1").className="promo1"; document.getElementById("promo2").className="promo2"; }
最后,CSS:
#mainFeature {float: left; width: 672px; height: 290px; margin: 0 0 9px 0; list-style: none;}
#mainFeature li {list-style: none;}
#mainFeature #theFeature {margin: 0; padding: 0; position: relative;}
#mainFeature #theFeature li {position: absolute; top: 0; left: 0;}
#promonav-con {width: 463px; height: 26px; padding: 0; margin: 0; position: absolute; z-index: 900; top: 407px; left: 283px;}
#primarypromonav {padding: 0; margin: 0;}
#mainFeature .links {padding: 0; margin: 0; list-style: none; position: relative; font-family: arial, verdana, sans-serif; width: 463px; height: 26px;}
#mainFeature .links li.promotop {list-style: none; display: block; float: left; display: inline; margin: 0; padding: 0;}
#mainFeature .links li a {display: block; float: left; display: inline; height: 26px; text-decoration: none; margin: 0; padding: 0; cursor: pointer;}
#mainFeature .links li a strong {margin-left: -9999px;}
#mainFeature .links li a.promo1 {background: url(../_images/carouselnav/promo1.gif); width: 155px;}
#mainFeature .links li:hover a.promo1 {background: url(../_images/carouselnav/promo1_hover.gif); width: 155px;}
#mainFeature .links li a.promo1:hover {background: url(../_images/carouselnav/promo1_hover.gif); width: 155px;}
.promo1on {background: url(../_images/carouselnav/promo1_on.gif); width: 155px;}
#mainFeature .links li a.promo2 {background: url(../_images/carouselnav/promo2.gif); width: 153px;}
#mainFeature .links li:hover a.promo2 {background: url(../_images/carouselnav/promo2_hover.gif); width: 153px;}
#mainFeature .links li a.promo2:hover {background: url(../_images/carouselnav/promo2_hover.gif); width: 153px;}
.promo2on {background: url(../_images/carouselnav/promo2_on.gif); width: 153px;}
#mainFeature .links li a.promo3 {background: url(../_images/carouselnav/promo3.gif); width: 155px;}
#mainFeature .links li:hover a.promo3 {background: url(../_images/carouselnav/promo3_hover.gif); width: 155px;}
#mainFeature .links li a.promo3:hover {background: url(../_images/carouselnav/promo3_hover.gif); width: 155px;}
.promo3on {background: url(../_images/carouselnav/promo3_on.gif); width: 155px;}
希望这是有道理的!再说一次,我对 JavaScript/JQuery 很陌生,所以如果这是一团糟,我深表歉意。我非常感谢任何建议。谢谢!