我试图让功能运行,但我不知道如何让它运行。我尝试点击并为每个select.all我创建单独的函数,我想要的功能是当我选择选项来改变一个段落的值到下面的选项。请帮忙。onchange和选择不工作
<select id="Providers" onchange="ProviderChanger()">
<option value="Empty" id="Empty" name="Empty">Please Select Provider</option>
<option value="Du1" id="Du1" name="Du1">Du 052</option>
<option value="Du2" id="Du2" name="Du2">Du 055</option>
<option value="Etisilat1" name="Etisilat1" id="Etisilat1">Etisilat 050</option>
<option value="Etisilat2" name="Etisilat2" id="Etisilat2">Etisilat 056</option>
<option value="Office" name="Office" id="Office">House/Office 04</option>
</select>
function ProviderChanger()
{
var ProviderValue = document.getElementById("Provider").value;
alert(ProviderValue);
if (ProviderValue == "Du1")
document.getElementById("Provider").innerHTML = "+971-55";
else if (ProviderValue == "Du2")
document.getElementById("Provider").innerHTML = "+971-52";
else if (ProviderValue == "Etisilat1")
document.getElementById("Provider").innerHTML = "+971-50";
else if (ProviderValue == "Etisilat2")
document.getElementById("Provider").innerHTML = "+971-56";
else if (ProviderValue == "Office")
document.getElementById("Provider").innerHTML = "+971-04";
else
document.getElementById("Provider").innerHTML = "";
}
我觉得自己像个白痴......非常感谢你 – user3636442