如何从JavaScript调用window.onload中的onchange函数

Question

I'm developing web page by using javascript and I have a question.

Everybody knows we use window.onload() function for initial status.

In my source code, Select box have onchange="onChangeServer()" function plus <input type="text"> .

<tr>
  <td>
    <select id="server_name" class="form-control" onchange="onChangeServer()" onselect="">
      <option value="0">A Server</option>
      <option value="1">B Server</option>
      <option value="2">C Server</option>
      <option value="3">etc</option>
    </select>
  </td>
  <td><input id="server_name_input" class="form-control" type="text"></td>
</tr>

If onChangeServer() function is changed, <input> tag will be writed about server information.

How to call onChangeServer() function in window.onload() ?

Thanks~!

Answer 1

I resolve this issue.

I'm just add "window.onload = onChangeServer();"

This line mean "Call onChangeServer() function. When you want to call some function as soon as page is onload"

 window.onload = onChangeServer(); function onChangeServer(){ var selsvr = document.getElementById("server_name"); var servername = selsvr.options[selsvr.selectedIndex].value; var tempServerName = null; if(servername=="0"){ tempServerName = server_0; } else if(servername=="1"){ tempServerName = server_1; } else if(servername=="2"){ } else if(servername=="3"){ } else { } serverNameInput.value = tempServerName; } 

Thanks a lot~