table {font-size = 9pt}
td {height = 20px}
<script for=pad event=onclick> // 大类节点点击响应 for(var i=1;i<this.parentElement.rows.length;i =2) this.parentElement.rows[i].style.display = "none"; this.parentElement.rows[this.rowIndex 1].style.display='block'; view.innerHTML = this.v1 ":" this.v2; // 根据大小类自行构造相应动作 </script> <script for=bar event=onclick> // 小类节点点击响应 view.innerHTML = this.v1 ":" this.v2; // 根据大小类自行构造相应动作 </script> <script> /** * 产生菜单的html代码串 * 入口参数为菜单默认打开的大类号 */ function menu(n) { this.ar = new Array( /** * 参数数组 * 列1:大类 * 列2:小类 * 列3:标题 */ new Array(1,0,"大类一"), new Array(1,1,"小类一"), new Array(1,2,"小类二"), new Array(2,0,"大类二"), new Array(2,1,"小类一"), new Array(2,2,"小类二"), new Array(2,3,"小类三"), new Array(3,0,"大类三"), new Array(3,1,"小类一"), new Array(3,2,"小类二"), new Array(4,0,"大类四"), new Array(4,1,"小类一"), new Array(4,2,"小类二"), new Array(4,3,"小类三") ); this.width =120; this.bgcolor = "#f0f0f0"; this.bordercolorlight = "#c0c0c0"; this.bordercolordark = "#FFFFFF"; this.tr_bgcolor = "#d0d0d0"; var s = "<table border=1 align=center width=" this.width " bgcolor=" this.bgcolor " bordercolorlight=" this.bordercolorlight " bordercolordark=" this.bordercolordark " CELLPADDING=0 CELLSPACING=0>" for(var i=0;i<this.ar.length;i ) { // 构造菜单的html结构,其中将大小类编号作为自定义参数,以便事件响应时使用。 if(this.ar[i][1] == 0) { if(i > 0) s = "</table></td></tr>"; var vk = this.ar[i][0]==n?"block":"none"; s = "<tr id='pad' bgcolor=" this.tr_bgcolor " v1=" this.ar[i][0] " v2=" this.ar[i][1] "><td align=center>" this.ar[i][2] "</td></tr><tr style='display:" vk "'><td><table width=100%>"; }else s = "<tr><td id='bar' v1=" this.ar[i][0] " v2=" this.ar[i][1] ">" this.ar[i][2] "</td></tr>"; } s = "</table></td></tr></table>"; return s; } /*** 创建菜单 ***/ menus.innerHTML = menu(4); </script>
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