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[转]非常不错的树形菜单div+css+js

2008-05-08 18:39 501 查看

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Div+CSS+JS树型菜单，可刷新</title>

<!--

*{...}{margin:0;padding:0;border:0;}

body {...}{font-family: arial, 宋体, serif;font-size:12px;}

#nav {...}{width:180px;line-height: 24px; list-style-type: none;text-align:left;/**//*定义整个ul菜单的行高和背景色*/}

/**//*==================一级目录===================*/

#nav a {...}{width: 160px; display: block;padding-left:20px;/**//*Width(一定要)，否则下面的Li会变形*/}

#nav li {...}{background:#CCC; /**//*一级目录的背景色*/border-bottom:#FFF 1px solid; /**//*下面的一条白边*/float:left;/**//*float：left,本不应该设置，但由于在Firefox不能正常显示继承Nav的width,限制宽度，li自动向下延伸*/}

#nav li a:hover{...}{background:#CC0000; /**//*一级目录onMouseOver显示的背景色*/}

#nav a:link {...}{color:#666; text-decoration:none;}

#nav a:visited {...}{color:#666;text-decoration:none;}

#nav a:hover {...}{color:#FFF;text-decoration:none;font-weight:bold;}

/**//*==================二级目录===================*/

#nav li ul {...}{list-style:none; text-align:left;}

#nav li ul li{...}{ background: #EBEBEB; /**//*二级目录的背景色*/}

#nav li ul a{...}{padding-left:20px;width:160px;/**//* padding-left二级目录中文字向右移动，但Width必须重新设置=(总宽度-padding-left)*/}

/**//*下面是二级目录的链接样式*/

#nav li ul a:link {...}{color:#666; text-decoration:none;}

#nav li ul a:visited {...}{color:#666;text-decoration:none;}

#nav li ul a:hover {...}{color:#F3F3F3;text-decoration:none;font-weight:normal;background:#CC0000;/**//* 二级onmouseover的字体颜色、背景色*/}

/**//*==============================*/

#nav li:hover ul {...}{left: auto;}

#nav li.sfhover ul {...}{left: auto;}

#content {...}{clear: left; }

#nav ul.collapsed {...}{display: none;}

#PARENT{...}{width:300px;padding-left:20px;}

/**//*==================三级目录===================*/

#nav li ul li ul {...}{list-style:none; text-align:left;}

#nav li ul li ul li{...}{ background: #EBEBEB; /**//*二级目录的背景色*/}

#nav li ul li ul li a{...}{padding-left:20px;width:160px;/**//* padding-left二级目录中文字向右移动，但Width必须重新设置=(总宽度-padding-left)*/}

/**//*下面是二级目录的链接样式*/

#nav li ul li ul li a:link {...}{color:#666; text-decoration:none;}

#nav li ul li ul li a:visited {...}{color:#666;text-decoration:none;}

#nav li ul li ul li a:hover {...}{color:#F3F3F3;text-decoration:none;font-weight:normal;background:#CC0000;/**//* 二级onmouseover的字体颜色、背景色*/}

-->

</style>

</head>

<body>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</li>

</ul>

</div>

</body>

</html>

var LastLeftID = "";

function menuFix() ...{

var obj = document.getElementById("nav").getElementsByTagName("li");

for (var i=0; i<obj.length; i++) ...{

obj[i].onmouseover=function() ...{

this.className+=(this.className.length>0? " ": "") + "sfhover";

}

obj[i].onMouseDown=function() ...{

this.className+=(this.className.length>0? " ": "") + "sfhover";

}

obj[i].onMouseUp=function() ...{

this.className+=(this.className.length>0? " ": "") + "sfhover";

}

obj[i].onmouseout=function() ...{

this.className=this.className.replace(new RegExp("( ?|^)sfhover/b"), "");

}

function DoMenu(emid)

...{

var obj = document.getElementById(emid);

obj.className = (obj.className.toLowerCase() == "expanded"?"collapsed":"expanded");

if((LastLeftID!="")&&(emid!=LastLeftID)) //关闭上一个Menu

...{

document.getElementById(LastLeftID).className = "collapsed";

}

LastLeftID = emid;

}

function GetMenuID()

...{

var MenuID="";

var _paramStr = new String(window.location.href);

var _sharpPos = _paramStr.indexOf("#");

if (_sharpPos >= 0 && _sharpPos < _paramStr.length - 1)

...{

_paramStr = _paramStr.substring(_sharpPos + 1, _paramStr.length);

}

else

...{

_paramStr = "";

}

if (_paramStr.length > 0)

...{

var _paramArr = _paramStr.split("&");

if (_paramArr.length>0)

...{

var _paramKeyVal = _paramArr[0].split("=");

if (_paramKeyVal.length>0)

...{

MenuID = _paramKeyVal[1];

}

/**//*

if (_paramArr.length>0)

{

var _arr = new Array(_paramArr.length);

}

//取所有#后面的，菜单只需用到Menu

//for (var i = 0; i < _paramArr.length; i++)

{

var _paramKeyVal = _paramArr[i].split('=');

if (_paramKeyVal.length>0)

{

_arr[_paramKeyVal[0]] = _paramKeyVal[1];

}

if(MenuID!="")

...{

DoMenu(MenuID)

}

GetMenuID(); //*这两个function的顺序要注意一下，不然在Firefox里GetMenuID()不起效果

menuFix();

--></script>

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