模仿Flash AS效果的导航菜单

%26lt;!-- http://js.knowsky.com/ --%26gt; %26lt;!-- http://bbs.knowsky.com/--%26gt; %26lt;!--分2步:第一步 把如下代码加入%26lt;body%26gt;区域中 --%26gt; %26lt;img src="/img/200406301.jpg" name="u" border=0 alt="Image" style="filter:alpha(opacity=0)"%26gt; %26lt;script language="<a href="http://edu.xinasp.com/biancheng/list_38_1.html" target="_blank" class="keylink">Java</a>Script"%26gt; var b = 1; var c = true; function fade(){ if(document.all); if(c == true) { b++; } if(b==100) { b--; c = false } if(b==10) { b++; c = true; } if(c == false) { b--; } u.filters.alpha.opacity=0 + b; setTimeout("fade()",50); } %26lt;/script%26gt; %26lt;!-- 第二步: 修改%26lt;body%26gt; --%26gt; %26lt;body onLoad="fade()"%26gt;