var subsmallclassid = new Array();

subsmallclassid[0] = new Array(1,2,'建筑')

subsmallclassid[1] = new Array(1,3,'景观')

subsmallclassid[2] = new Array(1,4,'规划')

subsmallclassid[3] = new Array(1,5,'园林')

subsmallclassid[4] = new Array(1,6,'室内')

subsmallclassid[5] = new Array(1,7,'表现')

subsmallclassid[6] = new Array(8,9,'理论')

subsmallclassid[7] = new Array(8,10,'书籍')

subsmallclassid[8] = new Array(8,11,'手绘')

subsmallclassid[9] = new Array(8,12,'工具')

subsmallclassid[10] = new Array(8,13,'软件')

subsmallclassid[11] = new Array(8,14,'大师')

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' size='8' onChange='changesmallclassid(this.value)'>");
document.write ("<option value='' selected>-选择-</option>");

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

document.write ("<option value=8>学习</option>");

document.write ("</select>")

document.write ("  <select name='smallclassid' size='8' 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' size='8' style='display:none;width:120px' id='smallerclassid'>");
document.write ("<option value='' selected>-选择-</option>");
document.write ("</select>")