<select onchange="kiss(this.value)">
<option value="张三">张三</option>
<option value="李四">李四</option>
<option value="王五">王五</option>
<option value="刘六">刘六</option>
<option value="胡七">胡七</option>
</select>
<input type="text" id="text">
<script language="JavaScript">
<!--
function kiss(theV)
{
document.all.text.value+=theV+",";
}
//-->
</script>
<option value="张三">张三</option>
<option value="李四">李四</option>
<option value="王五">王五</option>
<option value="刘六">刘六</option>
<option value="胡七">胡七</option>
</select>
<input type="text" id="text">
<script language="JavaScript">
<!--
function kiss(theV)
{
document.all.text.value+=theV+",";
}
//-->
</script>
function AddItem(locs){
for(var x=0;x<locs.length;x++)
{
var opt = locs.options[x];
if (opt.selected)
{
Form1.user.value=Form1.user.value+opt.text }
}}
</script><form name="Form1">
<table width="390">
<tr>
<td width="89">
<select name="ss" size="3" multiple >
<option value="0">张三</option>
<option value="1">李四</option>
<option value="2">王五</option>
</select>
<input name="user" type="text" id="user" size="15"> </td>
</tr>
</table>
</form>
<input type=button value=Click onClick="AddItem(document.Form1.ss)">