JavaScript二级联动下拉菜单
<html><head><title>test</title><script language="javascript">//var select1_len = document.frm.s1.options.length;var select2 = new Array(4);for (i=0; i<4; i++) 
{
select2[i] = new Array();
}//定义基本选项select2[0][0] = new Option("请选择", " ");select2[1][0] = new Option("PHP", " ");select2[1][1] = new Option("ASP", " ");select2[1][2] = new Option("JSP", " ");select2[2][0] = new Option("C/C++", " ");select2[2][1] = new Option("Java", " ");select2[2][2] = new Option("C#", " ");select2[3][0] = new Option("Perl", " ");select2[3][1] = new Option("Ruby", " ");select2[3][2] = new Option("Python", " ");function redirec(x){ var temp = document.frm.s2; for (i=0;i<select2[x].length;i++)
{
temp.options[i]=new Option(select2[x][i].text,select2[x][i].value);
} temp.options[0].selected=true;}</script></head><body><form name="frm"><select name="s1" onChange="redirec(this.options.selectedIndex)"> <option selected>请选择</option> <option value="1">脚本语言</option> <option value="2">高级语言</option> <option value="3">其他语言</option></select><select name="s2"> <option value="请选择" selected>请选择</option></select></form></body></html>posted on 2006-10-18 21:20 笨鸟先飞_淡泊人生 阅读(3539) 评论(2) 编辑 收藏 举报
