javascript实现listbox左右移动实现代码

<table cellSpacing="0" borderColorDark="#ffffff" cellPadding="3" width="460" 
align="left" borderColorLight="#000000" border="1"> 
<tr bgColor="#cccccc"> 
<td align="center" width="180"><b>所有地区</b> <asp:HiddenField ID="HidDistrictId" runat="server" /> </td> 
<td align="center" width="60"> </td> 
<td align="center" width="180"><b>已选地区</b></td> 
</tr> 
<tr > 
<td bgcolor="#cccccc" style="height: 200px; width: 180px;" > 
<asp:listbox id="listNewEmp" runat="server" Height="200px" Width="180px" SelectionMode="Single"></asp:listbox></td> 
<td valign="top" align="center" bgcolor="#cccccc" style="height: 200px; width: 60px;"> 
<asp:Panel ID="Panel1" runat="server" Height="180px" > 
<br> <br> 
<%--<asp:Button style="WIDTH: 48px; HEIGHT: 24px; font-family:宋体" Text="选择→" ID="btnReceSendToRight" runat="server" OnClick="btnReceSendToRight_Click"/>--%> 
<INPUT type="button" value="选择→" onclick = "add('listNewEmp','listright','HidDistrictId')" Text="选择→" style="WIDTH: 48px; HEIGHT: 24px; font-family:宋体"> 
<br> 
<br> 
<INPUT type="button" value="←删除" onclick = "move('listright')" style="WIDTH: 48px; HEIGHT: 24px; font-family:宋体" Text="←删除"> 
<%--<asp:Button style="WIDTH: 48px; HEIGHT: 24px; font-family:宋体" Text="←删除" ID="btnReceSendToLeft" runat="server" OnClick="btnReceSendToLeft_Click"/>--%> 
</asp:Panel> 
</td> 
<td bgcolor="#cccccc" style="height: 200px;"> 
<asp:listbox id="listright" runat="server" Height="200px" Width="180px" SelectionMode="Multiple"></asp:listbox>  
</td> 
</tr> 
</table> 
 
2。 javascript 部分： 
 代码如下:

<script language="Javascript"> 
function add(sourlist, deslist,hidId) 
{ //添加 
var objres = document.getElementById(sourlist); 
var objsel = document.getElementById(deslist); 
var customOptions; 
for(var i = objres.options.length - 1 ;i >= 0;i--) 
{ 
if(objres.options[i].selected) 
{ 
customOptions = document.createElement("OPTION"); 
customOptions.text = objres.options[i].text; 
customOptions.value = objres.options[i].value; 
if (objsel.options.length>0) 
objsel.remove(objsel.options.length - 1); 
document.getElementById(hidId).value = customOptions.value; 
objsel.add(customOptions,0); 
} 
} 
return false; 
} 
function move(deslist) { //删除 
var objres = document.getElementById(deslist); 
objres.remove(objres.options.length - 1); 
} 
</script> 
 
3.。cs部分 
存储是存 HidDistrictId.Value里的值，具体部分，用的时候再调节 
4。 效果图：