var submyCatetory = new Array();
var submySubCatetory = new Array();
function changeCatetory(selectValue)
{
document.getElementById('CatetoryID').length = 0;
document.getElementById('CatetoryID').options[0] = new Option('请选择','');
document.getElementById('SubCatetoryID').length = 0;
document.getElementById('SubCatetoryID').options[0] = new Option('请选择','');
for (var i=0; i<submyCatetory.length; i++)
{
 if (submyCatetory[i][1] == selectValue)
{
 document.getElementById('CatetoryID').options[document.getElementById('CatetoryID').length] = new Option(submyCatetory[i][2], submyCatetory[i][0]);
 }
 }
 }
function changeSubCatetory(selectValue)
{
document.getElementById('SubCatetoryID').length = 0;
document.getElementById('SubCatetoryID').options[0] = new Option('请选择','');
for (var i=0; i<submySubCatetory.length; i++)
{
 if (submySubCatetory[i][1] == selectValue)
{
 document.getElementById('SubCatetoryID').options[document.getElementById('SubCatetoryID').length] = new Option(submySubCatetory[i][2], submySubCatetory[i][0]);
 }
 }
 }
document.write ("<select name='IndustryID' id='IndustryID'  onChange='changeCatetory(this.value)'>");
document.write ("<option value='' selected>选择行业</option>");document.write ("<option value='1'>计算机</option>");
document.write ("<option value='2'>外语</option>");
document.write ("</select>");
document.write (" <select name='CatetoryID' class='selectBox' id='CatetoryID' onChange='changeSubCatetory(this.value);'>");document.write ("<option value='' selected>请选择</option>");document.write ("</select>");
document.write (" <select name='SubCatetoryID' class='selectBox' id='SubCatetoryID'>");document.write ("<option value='' selected>请选择</option>");document.write ("</select>");
document.getElementById('IndustryID').value='{';