菜单
<script><br/>/**<br/> * 产生菜单的html代码串<br/> * 入口参数为菜单默认打开的大类号<br/> */<br/>function menu(n) {<br/> this.ar = new Array(<br/> /**<br/> * 参数数组<br/> * 列1：大类<br/> * 列2：小类<br/> * 列3：标题<br/> */<br/> new Array(1,0,"大类一"),<br/> new Array(1,1,"小类一"),<br/> new Array(1,2,"小类二"),<br/> new Array(2,0,"大类二"),<br/> new Array(2,1,"小类一"),<br/> new Array(2,2,"小类二"),<br/> new Array(2,3,"小类三"),<br/> new Array(3,0,"大类三"),<br/> new Array(3,1,"小类一"),<br/> new Array(3,2,"小类二"),<br/> new Array(4,0,"大类四"),<br/> new Array(4,1,"小类一"),<br/> new Array(4,2,"小类二"),<br/> new Array(4,3,"小类三")<br/> );<br/> this.width =120;<br/> this.bgcolor = "#f0f0f0";<br/> this.bordercolorlight = "#c0c0c0";<br/> this.bordercolordark = "#FFFFFF";<br/> this.tr_bgcolor = "#d0d0d0";<br/> var s = "<table border=1 align=center width="+this.width+" bgcolor="+this.bgcolor+" bordercolorlight="+this.bordercolorlight+" bordercolordark="+this.bordercolordark+" CELLPADDING=0 CELLSPACING=0>"<br/> 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。<br/> if(this.ar[i][1] == 0) {<br/> if(i > 0)<br/> s += "";<br/> var vk = this.ar[i][0]==n?"block":"none";<br/> 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]+"<tr style='display:"+vk+"'><td><table width=100%>";<br/> }else<br/> s += "<tr><td id='bar' v1="+this.ar[i][0]+" v2="+this.ar[i][1]+">"+this.ar[i][2]+"";<br/> }<br/> s += "";<br/> return s;<br/>}<br/><br/>/*** 创建菜单 ***/<br/>menus.innerHTML = menu(4);<br/></script>
