‘document.getElementById(...)'为空或不是对象。但是又确实存在这些对象,而且ID都是对的
<script type="text/javascript">
var flag=Request("y_name");
if(flag!=null && flag!="")
{
if(flag=="cl")
{
document.getElementById("clxt").className="affairlab1";
document.getElementById("gdxt").className="affairlab2";
document.getElementById("zhjkxt").className="affairlab2";
document.getElementById("gdaoxt").className="affairlab2";
document.getElementById("pbmxt").className="affairlab2";
document.getElementById("sjpxt").className="affairlab2";
document.getElementById("sdtfxt").className="affairlab2";
document.getElementById("xhxt").className="affairlab2";
document.getElementById("txxt").className="affairlab2";
document.getElementById("dtxt").className="affairlab2";
document.getElementById("zdftxt").className="affairlab2";
}
else if(flag=="gd")
{
document.getElementById("clxt").className="affairlab2";
document.getElementById("gdxt").className="affairlab1";
document.getElementById("zhjkxt").className="affairlab2";
document.getElementById("gdaoxt").className="affairlab2";
document.getElementById("pbmxt").className="affairlab2";
document.getElementById("sjpxt").className="affairlab2";
document.getElementById("sdtfxt").className="affairlab2";
document.getElementById("xhxt").className="affairlab2";
document.getElementById("txxt").className="affairlab2";
document.getElementById("dtxt").className="affairlab2";
document.getElementById("zdftxt").className="affairlab2";
}
else if(flag=="pbm")
{
document.getElementById("clxt").className="affairlab2";
document.getElementById("gdxt").className="affairlab2";
document.getElementById("zhjkxt").className="affairlab2";
document.getElementById("gdaoxt").className="affairlab2";
document.getElementById("pbmxt").className="affairlab1";
document.getElementById("sjpxt").className="affairlab2";
document.getElementById("sdtfxt").className="affairlab2";
document.getElementById("xhxt").className="affairlab2";
document.getElementById("txxt").className="affairlab2";
document.getElementById("dtxt").className="affairlab2";
document.getElementById("zdftxt").className="affairlab2";
}
else if(flag=="sjp")
{
document.getElementById("clxt").className="affairlab2";
document.getElementById("gdxt").className="affairlab2";
document.getElementById("zhjkxt