代码如下： <head><style> <!-- #foldheader{cursor:hand ; font-weight:bold ; list-style-image:url('image/fold.gif')} #foldinglist{list-style-image:url('image/list.gif')} //--> </style> <script language="JavaScript1.2"> <!-- //以下可以改为你的图标 var head="display:''" img1=new Image() img1.src="image/1.gif" img2=new Image() img2.src="image/2.gif" function change(){ if(!document.all) return if (event.srcElement.id=="foldheader") { var srcIndex = event.srcElement.sourceIndex var nested = document.all[srcIndex+1] if (nested.style.display=="none") { nested.style.display='' event.srcElement.style.listStyleImage="url(open.gif)" } else { nested.style.display="none" event.srcElement.style.listStyleImage="url(fold.gif)" } } } document.onclick=change //--> </script></head><body><ul> <li id="foldheader">菜单一</li> <ul id="foldinglist" style="display:none"> <li><font color="#FF0000">111111</font></li> <li><font color="#FF0000">222222</font></li> <li><font color="#FF0000">333333</font></li> </ul> <li id="foldheader">菜单二</li> <ul id="foldinglist" style="display:none"> <li><font color="#0000FF">444444</font></li> <li><font color="#0000FF">555555</font></li> <li><font color="#0000FF">666666</font></li> </ul> <li id="foldheader">菜单三</li> <ul id="foldinglist" style="display:none"> <li><font color="#008000">777777</font></li> <li><font color="#008000">888888</font></li> <li id="foldheader">子菜单</li> <ul id="foldinglist" style="display:none"> <li><font color="#800000">99999999</font></li> <li><font color="#800000">00000000</font></li> </ul> <li><font color="#FF9933">12121212</font></li> <li><font color="#FF9933">12121212</font></li> </ul> </ul><script language="JavaScript1.2"> <!-- /** * Get cookie routine by Shelley Powers * (shelley.powers@ne-dev.com) */ function get_cookie(Name) { var search = Name + "=" var returnvalue = ""; if (document.cookie.length > 0) { offset = document.cookie.indexOf(search) // if cookie exists if (offset != -1) { offset += search.length // set index of beginning of value end = document.cookie.indexOf(";", offset); // set index of end of cookie value if (end == -1) end = document.cookie.length; returnvalue=unescape(document.cookie.substring(offset, end)) } } return returnvalue; } if (get_cookie(window.location.pathname) != ''){ var openresults=get_cookie(window.location.pathname).split(" ") for (i=0 ; i < openresults.length ; i++){ foldinglist[openresults[i]].style.display='' document.all[foldinglist[openresults[i]].sourceIndex - 1].style.listStyleImage="url(open.gif)" } } if (document.all){ var nodelength=foldinglist.length-1 var nodes=new Array(nodelength) var openones='' } function check(){ for (i=0 ; i <= nodelength ; i++){ if (foldinglist[i].style.display=='') openones=openones + " " + i } document.cookie=window.location.pathname+"="+openones } if (document.all) document.body.onunload=check //--> </script> </body>
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