form onsubmit="aa(this);"
input type="text" name="" value="test" /input type="submit" value="提交" /
/form
iframe src="" name="fA" frameborder="1" scrolling="no"/iframe
iframe src="" name="fB" frameborder="1" scrolling="no"/iframe
script type="text/javascript"
function aa(oForm){
oForm.action="http://bbs.51js.com";
oForm.target="fA"
oForm.submit();
oForm.action="http://www.iecn.net/bbs/";
oForm.target="fB"
oForm.submit();
return false;
}
/script