下列代碼為何無效??
function changenext(){
var select1=document.getElementById("selectcompany");
var select2=document.getElementById("selectdept");
var cobalt1dep=new Array("前台","經理室","國內市場部","行政部","資訊組","倉庫","塑膠部","裝備一部","裝備二部","品質部","採購部","PMC","工程部(樣板組)","工程部","工模部","生產總部","財務部","移噴部");
var cobalt2dep=new Array("行政","工程","工程IE組","BOM","品質部","引線部","工程部","裝備三部","倉庫","喇叭","海棉");
var hkdep=new Array("administration","acounting","sale&marketing","shipping","R&D","conference","國內廠專線電話");
switch (select1.options[select1.selectedIndex].value)
{
case "高寶一廠":
for (i=0;i<cobalt1dep.Length ;i++ )
{
alert(i);
var o=new option(cobalt1dep[0],cobaltdep[0]);
select2.appendChild(o);
}
case "高寶二廠":
for (i2=0;i2<cobalt2dep.Length ;i2++ )
{
var e1=document.createElement("option");
alert(e1);
e1.text=cobalt1dep[i2];
e1.value=cobalt1dep[i2];
select2.appendChild(e1);
}
case "香港":
}
}