jquery实现无限分级横向导航菜单的方法_jquery

本文实例讲述了jquery实现无限分级横向导航菜单的方法。分享给大家供大家参考。具体实现方法如下：

1. jquery插件版本代码如下：

(function($){
$.fn.extend({
droplinemenu: function(configs) {
var configs = $.extend({
over: 200,
out: 100,
rightdown:'css/down.gif'
},configs||{});
this.find(">ul").addClass("dropmenu");
this.find("ul li:has(ul)").addClass('hasmenu').find(">a").append("");
var currentobj;
return $('li.hasmenu').hover(function(){
if ($.browser.msie) {//清除ie下生成的overflow:hidden
$(this).parent("ul").css({'overflow': 'visible'});
}
$(this).find(">ul").stop(true, true).css('top',$(this).height()).slideDown(configs.over);
},function(){
$(this).find(">ul").stop(true, true).slideUp(configs.out);
});
}
});
})(jQuery);

2. 样式代码

* {margin:0;padding:0}
.droplinebar{
position: absolute;
z-index: 20;
width: 700px;
}
.droplinebar ul.dropmenu {
position: relative;
}
.droplinebar ul{
width: 100%;
float: left;
font: bold 13px Arial;
background: #242c54 url(bluedefault.gif) center center repeat-x; /*default background of menu bar*/
}
.droplinebar ul li{
float:left;
}
.droplinebar ul ul {
width: 700px;
display:none;
z-index: 100;
position:absolute;
left:0;
background: #303c76;
zoom: 1;
}
.droplinebar ul li a{
float: left;
color: white;
padding: 9px 11px;
text-decoration: none;
display:block;
}
.droplinebar ul li.hasmenu a img {border:none;margin-left:5px;}
.droplinebar ul li a:hover, .droplinebar ul li .current{ /*background of main menu bar links onMouseover*/
color: white;
background: transparent url(blueactive.gif) center center repeat-x;
}
/* Sub level menu links style */
.droplinebar ul li ul li a{
font: normal 13px Verdana;
padding: 6px;
padding-right: 8px;
margin: 0;
border-bottom: 1px solid navy;
}
.droplinebar ul li ul li a:hover{ /*sub menu links' background color onMouseover */
background: #242c54;
}

3. HTML代码如下

• Home


• CSS Examples
  
  
  
  • Activities 1
  
  
  • Activities 2
  
  
  • Activities 3
    
    
  
  
  • Activities 4
  
  
  
  


• Tools


• JavaScript
  
  
  
  • Traveling 1
  
  
  • Traveling 2
  
  
  • Traveling 3
  
  
  • Traveling 4
    
    
    
    • Africa 1
    
    
    • Africa 2
    
    
    • Africa 3
    
    
    • Africa 4
      
      
    
    
    
    
  
  
  • Traveling 5
  
  
  
  


• Gallery

4. 无插件版本代码:

$(document).ready(function(){
var configs_over = 200,configs_out = 100;
$("#mydroplinemenu").find(">ul").addClass("dropmenu").find("li:has(ul)").addClass('hasmenu').find(">a").append("");
$('.dropmenu li.hasmenu').hover(function(){
if ($.browser.msie) {//清除ie下生成的overflow:hidden
$(this).parent("ul").css({'overflow': 'visible'});
}
$(this).find(">ul").stop(true, true).css('top',$(this).height()).slideDown(configs_over);
},function(){
$(this).find(">ul").stop(true, true).slideUp(configs_out);
});
});

希望本文所述对大家的jQuery程序设计有所帮助。