var subsecondClass = new Array();
var subthirdClass = new Array();
subsecondClass[0] = new Array('2','1','环境影响评价相关法律法规')
subsecondClass[1] = new Array('3','1','环境影响评价技术导则与标准')
subsecondClass[2] = new Array('4','1','环境影响评价技术方法')
subsecondClass[3] = new Array('6','1','环境影响评价案例分析')
subsecondClass[4] = new Array('10','7','公共基础')
subthirdClass[0] = new Array('21','10','数学')
subthirdClass[1] = new Array('22','10','物理学')
subthirdClass[2] = new Array('23','10','化学')
subthirdClass[3] = new Array('24','10','理论力学')
subthirdClass[4] = new Array('25','10','材料力学')
subthirdClass[5] = new Array('26','10','流体力学')
subthirdClass[6] = new Array('27','10','电气与信息')
subthirdClass[7] = new Array('28','10','法律与工程经济')
subsecondClass[5] = new Array('11','7','专业基础')
subthirdClass[8] = new Array('29','11','电路与电磁场')
subthirdClass[9] = new Array('30','11','模拟电子技术')
subthirdClass[10] = new Array('31','11','数字电子技术')
subthirdClass[11] = new Array('32','11','电气工程基础')
subsecondClass[6] = new Array('15','8','康老师')
subsecondClass[7] = new Array('16','8','袁老师')
subsecondClass[8] = new Array('17','9','胡老师')
subsecondClass[9] = new Array('18','9','潘老师')
function showSecondClass(selectValue)
{
document.getElementById('SmallClassID').length = 0;
document.getElementById('SmallClassID').options[0] = new Option('请选择','');
document.getElementById('ClassID').length = 0;
document.getElementById('ClassID').options[0] = new Option('请选择','');
for (var i=0; i<subsecondClass.length; i++)
{
 if (subsecondClass[i][1] == selectValue)
{
 document.getElementById('SmallClassID').options[document.getElementById('SmallClassID').length] = new Option(subsecondClass[i][2], subsecondClass[i][0]);
 }
 }
if (document.getElementById('SmallClassID').length>1) { document.getElementById('SmallClassID').style.display=''; }else{ document.getElementById('SmallClassID').style.display='none'; } }
function showThirdClass(selectValue)
{
document.getElementById('ClassID').length = 0;
document.getElementById('ClassID').options[0] = new Option('请选择','');
for (var i=0; i<subthirdClass.length; i++)
{
 if (subthirdClass[i][1] == selectValue)
  {
    document.getElementById('ClassID').options[document.getElementById('ClassID').length] = new Option(subthirdClass[i][2], subthirdClass[i][0]);
  }
 }
 if (document.getElementById('ClassID').length>1) { document.getElementById('ClassID').style.display=''; }else{ document.getElementById('ClassID').style.display='none'; }  }
document.write ("<select name='BigClassID' id='BigClassID' onChange='showSecondClass(this.value);'>");
document.write ("<option value='' selected>选择分类</option>");document.write ("<option value='1'>环境影响评价师</option>");
document.write ("<option value='7'>注电基础</option>");
document.write ("<option value='8'>发输变电专业</option>");
document.write ("<option value='9'>供配电专业</option>");
document.write ("</select>");
document.write (" <select name='SmallClassID' style='display:none;width:100px' id='SmallClassID' onChange='showThirdClass(this.value);'>");document.write ("<option value='' selected>请选择</option>");document.write ("</select>");
document.write (" <select name='ClassID' style='display:none;width:100px' id='ClassID'>");document.write ("<option value='' selected>请选择</option>");document.write ("</select>");