jQuery有动画淡出的二级折叠菜单代码

2024-09-05 12:20:36

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jQuery有动画淡出的二级折叠菜单代码，相当不错，因考虑功能的实现，所以没有怎么美化，不过这样也好，可以给大家更多的空间来修饰美化，想怎么弄就怎么弄了。

<!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><title>jQuery有动画淡出的二级折叠菜单代码</title><SCRIPT src="/ajaxjs/jquery1.3.2.js" type=text/javascript></SCRIPT><SCRIPT>$(function(){  $("a").bind("focus",function(){if(this.blur)this.blur();});  $("#menu > li:first-child").addClass("first_menu");  $("#menu > li:first-child.current_page_item, #menu > li:first-child.current-cat").addClass("first_menu_active");  $("#menu > li:last-child").addClass("last_menu");  $("#menu > li:last-child.current_page_item, #menu > li:last-child.current-cat").addClass("last_menu_active");  $("#menu li ul li:has(ul)").addClass("parent_menu");  $("#right_col ul > li:last-child").css({marginBottom:"0"});  $("#comment_area ol > li:even").addClass("even_comment");  $("#comment_area ol > li:odd").addClass("odd_comment");  $(".even_comment > .children > li").addClass("even_comment_children");  $(".odd_comment > .children > li").addClass("odd_comment_children"); 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this.h[i]=h; this.c[i]=s[i];			h.onmouseover=new Function(this.n+'.st('+i+',true)');			h.onmouseout=new Function(this.n+'.st('+i+')');		}	}	dd.prototype.st=function(x,f){		var c=this.c[x], h=this.h[x], p=h.getElementsByTagName('a')[0];		clearInterval(c.t); c.style.overflow='hidden';		if(f){			p.className+=' '+a;			if(!c.mh){c.style.display='block'; c.style.height=''; c.mh=c.offsetHeight; c.style.height=0}			if(c.mh==c.offsetHeight){c.style.overflow='visible'}			else{c.style.zIndex=z; z++; c.t=setInterval(function(){sl(c,1)},t)}		}else{p.className=p.className.replace(a,''); c.t=setInterval(function(){sl(c,-1)},t)}	}	function sl(c,f){		var h=c.offsetHeight;		if((h<=0&&f!=1)||(h>=c.mh&&f==1)){			if(f==1){c.style.filter=''; c.style.opacity=1; c.style.overflow='visible'}			clearInterval(c.t); return		}		var d=(f==1)?Math.ceil((c.mh-h)/s):Math.ceil(h/s), o=h/c.mh;		c.style.opacity=o; c.style.filter='alpha(opacity='+(o*100)+')';		c.style.height=h+(d*f)+'px'	}	return{dd:dd}}();</SCRIPT><style type="text/css">a{text-decoration:none}.menu ul{  margin:0 0 0 10px;  padding:0;  display:none;}.menu ul li{  height:22px;  line-height:22px;  border:none;}.menu ul li a{  font-size:12px;  font-weight:normal;  color:#666;}.menu ul ul{  position:absolute;  z-index:3;  background:#CC3366;}.menu ul ul li{text-indent:10px;padding-right:10px}.menu ul ul li a{color:#fff}</style></head><body> <ul class="menu" id="menu">    <li>一级菜单1      <ul>        <li>二级菜单1</li>        <li>二级菜单2</li>        <li>二级菜单3</li>        <li>二级菜单4</li>        <li>二级菜单5</li>        <li>二级菜单6</li>      </ul>    </li>      <li>一级菜单2    <ul>        <li>二级菜单1          <ul>            <li>三级菜单1</li>            <li>三级菜单2</li>          </ul>        </li>        <li>二级菜单2</li>      </ul>    </li> </ul> <SCRIPT type=text/javascript> 	var menu=new menu.dd("menu");	menu.init("menu","menuhover");</SCRIPT></body></html>

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