树形菜单(一)

多级菜单特效代码如下：
以下代码加入<head>区域
<style type="text/css"> </style> <script language="JavaScript1.2"> scores = new Array(20);var numTotal=0;NS4 = (document.layers) ? 1 : 0;IE4 = (document.all) ? 1 : 0;ver4 = (NS4 || IE4) ? 1 : 0;if (ver4) { with (document) { write("<STYLE TYPE='text/css'>"); if (NS4) { write(".parent {position:absolute; visibility:visible}"); write(".child {position:absolute; visibility:visible}"); write(".regular {position:absolute; visibility:visible}") } else { write(".child {display:none}") } write("</STYLE>"); }}function getIndex(el) { ind = null; for (i=0; i<document.layers.length; i++) { whichEl = document.layers[i]; if (whichEl.id == el) { ind = i; break; } } return ind;}function arrange() { nextY = document.layers[firstInd].pageY +document.layers[firstInd].document.height; for (i=firstInd+1; i<document.layers.length; i++) { whichEl = document.layers[i]; if (whichEl.visibility != "hide") { whichEl.pageY = nextY; nextY += whichEl.document.height; } }}function initIt(){ if (!ver4) return; if (NS4) { for (i=0; i<document.layers.length; i++) { whichEl = document.layers[i]; if (whichEl.id.indexOf("Child") != -1) whichEl.visibility = "hide"; } arrange(); } else { divColl = document.all.tags("DIV"); for (i=0; i<divColl.length; i++) { whichEl = divColl(i); if (whichEl.className == "child") whichEl.style.display = "none"; } }}function expandIt(el) { if (!ver4) return; if (IE4) { whichEl1 = eval(el + "Child"); for(i=1;i<=numTotal;i++){ whichEl = eval(scores[i] + "Child"); if(whichEl!=whichEl1) { whichEl.style.display = "none"; } } whichEl1 = eval(el + "Child"); if (whichEl1.style.display == "none") { whichEl1.style.display = "block"; } else { whichEl1.style.display = "none"; } } else { whichEl = eval("document." + el + "Child"); for(i=1;i<=numTotal;i++){ whichEl = eval("document." + scores[i] + "Child"); if(whichEl!=whichEl1) { whichEl.visibility = "hide"; } } if (whichEl.visibility == "hide") { whichEl.visibility = "show"; } else { whichEl.visibility = "hide"; } arrange(); }}onload = initIt; </script>

以下代码加入<body>区域
<table border=1 bordercolor=#666666 borderlight=green width="206"> <tr> <td align=center><font face="Arial, Helvetica, sans-serif"><strong class="title">下面为脚本显示区</strong><strong></strong></font></td> </tr> <tr> <td align=left> <div id='KB1Parent' class='parent'><a href="#" onClick="expandIt('KB1'); return false"> <img src='plus.gif' border=0 width="26" height="13">时间日期类</a></div> <div id='KB1Child' class='child'> <a href='time1.htm' target='_target'> <img src='blank.gif' border=0 width="24" height="14">任意位置显示时钟</a><br> <a href='time2.htm' target='_target'> <img src='blank.gif' border=0 width="24" height="14">倒计时代码生成器</a><br> <a href='time3.htm' target='_target'> <img src='blank.gif' border=0>八种风格时间显示</a><br> <a href='time8.htm' target='_target'> <img src='blank.gif' border=0>全中文日期显示</a></div> <div id='KB2Parent' class='parent'><a href="#" onClick="expandIt('KB2'); return false"> <img src='plus.gif' border=0>页面导航类</a></div> <div id='KB2Child' class='child'> <a href='dao1.htm' target='_target'> <img src='blank.gif' border=0>显示站点信息导航</a><br> <a href='dao9.htm' target='_target'> <img src='blank.gif' border=0>友情链接导航框</a><br> <a href='dao10.htm' target='_target'> <img src='blank.gif' border=0>目录式导航菜单</a><br> <a href='dao11.htm' target='_target'> <img src='blank.gif' border=0>重要信息说明脚本</a> </div> <div id='KB3Parent' class='parent'><a href="#" onClick="expandIt('KB3'); return false"> <img src='plus.gif' border=0 width="26" height="13">页面背景类</a></div> <div id='KB3Child' class='child'> <a href='back1.htm' target='_target'> <img src='blank.gif' border=0>背景向下移动</a><br> <a href='back2.htm' target='_target'> <img src='blank.gif' border=0>背景不停变换色彩</a><br> <a href='back9.htm' target='_target'> <img src='blank.gif' border=0>页面转换特效</a></div> <div id='KB4Parent' class='parent'><a href="#" onClick="expandIt('KB4'); return false"> <img src='plus.gif' border=0>页面特效类</a></div> <div id='KB4Child' class='child'> <a href='ye1.htm' target='_target'> <img src='blank.gif' border=0>字符从空中掉下来</a><br> <a href='ye17.htm' target='_target'> <img src='blank.gif' border=0>鼠标响应文字变色</a> </div> <div id='KB5Parent' class='parent'><a href="#" onClick="expandIt('KB5'); return false"> <img src='plus.gif' border=0>图形图象类</a></div> <div id='KB5Child' class='child'> <a href='picture1.htm' target='_target'> <img src='blank.gif' border=0>禁止图片下载</a><br> <a href='picture11.htm' target='_target'> <img src='blank.gif' border=0>图形选择脚本</a><br> <a href='picture12.htm' target='_target'> <img src='blank.gif' border=0>图片翻滚导航</a><br> <a href='picture13.htm' target='_target'> <img src='blank.gif' border=0>图片翻滚导航</a> </div> <div id='KB6Parent' class='parent'><a href="#" onClick="expandIt('KB6'); return false"> <img src='plus.gif' border=0>按钮特效类</a></div> <div id='KB6Child' class='child'> <a href='an2.htm' target='_target'> <img src='blank.gif' border=0>跑马灯式链接说明</a><br> <a href='an7.htm' target='_target'> <img src='blank.gif' border=0>按顺序点击链接</a></div> <div id='KB7Parent' class='parent'><a href="#" onClick="expandIt('KB7'); return false"> <img src='plus.gif' border=0>鼠标事件类</a></div> <div id='KB7Child' class='child'> <a href='shu1.htm' target='_target'> <img src='blank.gif' border=0>图片跟随鼠标</a><br> <a href='shu5.htm' target='_target'> <img src='blank.gif' border=0>禁用右键自动导航</a><br> <a href='shu6.htm' target='_target'> <img src='blank.gif' border=0>鼠标激活警告框</a> </div> <div id='KB8Parent' class='parent'><a href="#" onClick="expandIt('KB8'); return false"> <img src='plus.gif' border=0>Cookie脚本</a></div> <div id='KB8Child' class='child'> <a href='cook1.htm' target='_target'> <img src='blank.gif' border=0>随登陆次数变提示</a><br> <a href='cook8.htm' target='_target'> <img src='blank.gif' border=0>检测IE去过站点</a><br> <a href='cook9.htm' target='_target'> <img src='blank.gif' border=0>离开时显示信息</a><br> <a href='cook10.htm' target='_target'> <img src='blank.gif' border=0>弹出窗口自动关闭</a><br> <a href='cook11.htm' target='_target'> <img src='blank.gif' border=0>离开页面弹出窗口</a><br> <a href='cook12.htm' target='_target'> <img src='blank.gif' border=0>进入时显示信息</a></div> <div id='KB9Parent' class='parent'><a href="#" onClick="expandIt('KB9'); return false"> <img src='plus.gif' border=0>文本特效类</a></div> <div id='KB9Child' class='child'> <a href='text1.htm' target='_target'> <img src='blank.gif' border=0>随机信息显示</a><br> <a href='ye9.htm' target='_target'> <img src='blank.gif' border=0>文字颜色渐变脚本</a><br> <a href='ye5.htm' target='_target'> <img src='blank.gif' border=0>文本自动输出</a></div> <div id='KB10Parent' class='parent'><a href="#" onClick="expandIt('KB10'); return false"> <img src='plus.gif' border=0>状态栏特效</a></div> <div id='KB10Child' class='child'> <a href='ye8.htm' target='_target'> <img src='blank.gif' border=0>状态栏跑马灯脚本</a><br> <a href='zhuang1.htm' target='_target'> <img src='blank.gif' border=0>文字从右弹出</a><br> <a href='zhuang8.htm' target='_blank'> <img src='blank.gif' border=0>title变化弹出</a></div> <div id='KB11Parent' class='parent'><a href="#" onClick="expandIt('KB11'); return false"> <img src='plus.gif' border=0>密  码  类</a></div> <div id='KB11Child' class='child'> <a href='password1.htm' target='_target'> <img src='blank.gif' border=0>控制他人进入页面</a><br> <a href='password3.htm' target='_target'> <img src='blank.gif' border=0>用来实现会员制度</a><br> <a href='password4.htm' target='_target'> <img src='blank.gif' border=0>密码保护相应页面</a><br> <a href='password5.htm' target='_target'> <img src='blank.gif' border=0>自己编制密码表</a></div> <div id='KB12Parent' class='parent'><a href="#" onClick="expandIt('KB12'); return false"> <img src='plus.gif' border=0>综  合  类</a></div> <div id='KB12Child' class='child'> <a href='zh1.htm' target='_target'> <img src='blank.gif' border=0>加密页面源代码</a><br> <a href='zh2.htm' target='_target'> <img src='blank.gif' border=0>访问时间限制</a><br> <a href='zh11.htm' target='_target'> <img src='blank.gif' border=0>搜索引擎登记</a><br> <a href='zh12.htm' target='_target'> <img src='blank.gif' border=0>下载记时器脚本</a> </div> <div id='KB13Parent' class='parent'><a href="#" onClick="expandIt('KB13'); return false"> <img src='plus.gif' border=0>游  戏  类</a></div> <div id='KB13Child' class='child'> <a href='you1.htm' target='_target'> <img src='blank.gif' border=0>一款流行游戏</a></div> <script>numTotal=14;scores[1]='KB1';scores[2]='KB1';scores[3]='KB2';scores[4]='KB3';scores[5]='KB4';scores[6]='KB5';scores[7]='KB6';scores[8]='KB7';scores[9]='KB8';scores[10]='KB9';scores[11]='KB10';scores[12]='KB11';scores[13]='KB12';scores[14]='KB13';</script> </td> </tr> </table>