function Flash_Car_Ex(name, carname, carswfhost, carswf) {
parent.d.writemsg("u", "<font color=#00bb00>: " + name + " " + carname + " </font>");
parent.ShowMagicFace(carswfhost + carswf);
}
<script>parent.Flash_Car_Ex('name','carname');parent.d.writemsg('u','<font color=#00bb00>name carnaer</font>');</script>
不知道問的什麼問題。。。你調用Flash_Car_Ex傳遞的參數都不夠
function Flash_Car_Ex(name, carname, carswfhost, carswf)
parent.Flash_Car_Ex('name','carname');