var subsmallclassid = new Array();

subsmallclassid[0] = new Array(1,5,'互联网')

subsmallclassid[1] = new Array(1,28,'网络资源')

subsmallclassid[2] = new Array(2,6,'电脑基础')

subsmallclassid[3] = new Array(2,7,'操作系统')

subsmallclassid[4] = new Array(2,27,'移动设备')

subsmallclassid[5] = new Array(2,29,'硬件软件')

subsmallclassid[6] = new Array(3,8,'网游')

subsmallclassid[7] = new Array(3,9,'手游')

subsmallclassid[8] = new Array(4,10,'求职技巧')

subsmallclassid[9] = new Array(4,11,'职场关系')

subsmallclassid[10] = new Array(4,12,'薪酬福利')

subsmallclassid[11] = new Array(13,14,'入学升学')

subsmallclassid[12] = new Array(13,15,'高校情况')

subsmallclassid[13] = new Array(13,16,'职业教育')

subsmallclassid[14] = new Array(13,17,'学习帮助')

subsmallclassid[15] = new Array(18,19,'恋爱')

subsmallclassid[16] = new Array(18,20,'烦恼')

subsmallclassid[17] = new Array(18,21,'心情')

subsmallclassid[18] = new Array(18,22,'家庭')

subsmallclassid[19] = new Array(23,24,'音乐')

subsmallclassid[20] = new Array(23,25,'影视')

subsmallclassid[21] = new Array(23,26,'兴趣')

function changesmallclassid(selectValue)
{
document.getElementById('smallclassid').length = 0;
document.getElementById('smallclassid').options[0] = new Option('-选择-','');
for (i=0; i<subsmallclassid.length; i++)
{
if (subsmallclassid[i][0] == selectValue)
{
document.getElementById('smallclassid').options[document.getElementById('smallclassid').length] = new Option(subsmallclassid[i][2], subsmallclassid[i][1]);
}
}
}
function changesmallerclassid(selectValue)
{
document.getElementById('smallerclassid').length = 0;
document.getElementById('smallerclassid').options[0] = new Option('-选择-','');
for (i=0; i<subsmallclassid.length; i++)
{
if (subsmallclassid[i][0] == selectValue)
{
	document.getElementById('smallerclassid').style.display='';
	document.getElementById('smallerclassid').options[document.getElementById('smallerclassid').length] = new Option(subsmallclassid[i][2], subsmallclassid[i][1]);
}
}
}


document.write ("<select name='classid' id='classid' style='width:120px' onChange='changesmallclassid(this.value)'>");
document.write ("<option value='' selected>-选择-</option>");

document.write ("<option value=1>网络</option>");

document.write ("<option value=2>电脑数码</option>");

document.write ("<option value=3>游戏</option>");

document.write ("<option value=4>职场</option>");

document.write ("<option value=13>教育</option>");

document.write ("<option value=18>情感</option>");

document.write ("<option value=23>娱乐</option>");

document.write ("</select>")

document.write ("  <select name='smallclassid' onChange='changesmallerclassid(this.value)' style='width:120px' id='smallclassid'>");
document.write ("<option value='' selected>-选择-</option>");
document.write ("</select>")
document.write ("  <select name='smallerclassid'  style='display:none;width:120px' id='smallerclassid'>");
document.write ("<option value='' selected>-选择-</option>");
document.write ("</select>")