Specific implementation of js drop-down box secondary context menu effect code_javascript skills

Copy code The code is as follows: double Select context menu Special effect code Web page language Software tutorial Mouse class Window class Navigation class onClick="go()" >

var groups=document.doublecombo.example.options.length var group=new Array(groups ) for (I=0; I group[I]=new Array() group[0][0]=new Option("Mouse Class","/texiao /shubiao") group[0][1]=new Option("Window Class","/texiao/chuangkou") group[0][2]=new Option("Navigation Class"," /texiao/daohang") group[1][0]=new Option("ASP","/yuyan/asp") group[1][1]=new Option("PHP"," /yuyan/php") group[1][2]=new Option("JSP","/yuyan/jsp") group[2][0]=new Option("Dreamweaver"," /ruanjian/Dreamweaver") group[2][1]=new Option("Fireworks","/ruanjian/Fireworks") group[2][2]=new Option("Flash"," /ruanjian/Flash") group[2][3]=new Option("Photoshop","/ruanjian/Photoshop") var temp=document.doublecombo.stage2 function redirect(x) { for (m=temp.options.length-1;m>0;m--) temp.options[m]=null for (I=0;I temp.options[I]=new Option(group[x][I].text,group[x][I].value) } temp.options[ 0].selected=true } function go(){ location=temp.options[temp.selectedIndex].value } //--> &lt ;/script>