var subsmallclassid = new Array();

subsmallclassid[0] = new Array(4,5,'企业宣传片')

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

subsmallclassid[2] = new Array(4,7,'活动摄像')

subsmallclassid[3] = new Array(4,8,'网络直播业务')

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>彩铃业务</option>");

document.write ("<option value=2>网络营销</option>");

document.write ("<option value=3>400电话</option>");

document.write ("<option value=4>视频业务</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>")