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Select下拉列表框进行多选、移除、交换内容(包括修改反显)

    博客分类:
  • js
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Select下拉列表框进行多选、移除、交换内容</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body style="font-size:12px">
<form name="form1" method="post" action="">
<table width="380" border="0" align="center" cellpadding="0" cellspacing="0">
  <tr>
    <td width="150">
<table width="150" border="0" cellpadding="1" cellspacing="1" bgcolor="#CAFAFC">
      <tr>
        <td height="25" background="/electbg.jpg" bgcolor="#FFFFFF">   请选择:</td>
      </tr>
      <tr>
        <td align="center" bgcolor="#FFFFFF">
<select name="sel_place1" size="6" multiple id="sel_place1" style="width:100px " >
  <option value="sel1">江苏省</option>
  <option value="sel2">广东省</option>
  <option value="sel3">河南省</option>
  <option value="sel4">吉林省</option>
  <option value="sel5">浙江省</option>
</select>
</td>
      </tr>
    </table></td>
    <td width="80" align="center" valign="bottom">
<input name="sure1" type="button" id="sure1"  onClick="allsel(document.form1.sel_place2,document.form1.sel_place1);" value="<<">  &nbsp;
<input name="sure2" type="button" id="sure2"  onClick="allsel(document.form1.sel_place1,document.form1.sel_place2);" value=">>" align="center" height="2">
</td>
    <td width="150">
<table width="150" border="0" cellpadding="1" cellspacing="1" bgcolor="#CAFAFC">
      <tr>
        <td height="25" background="/selectbg.jpg" bgcolor="#FFFFFF">   已选择:</td>
      </tr>
      <tr>
        <td align="center" bgcolor="#FFFFFF">
<select name="sel_place2" size="6" multiple id="sel_place2" style="width:100px ">   </select>
</td>
      </tr>
    </table></td>
  </tr>
</table>
</br></br>
<center>
  <input  type="button" id="btn1"  onClick="submitForm();" value="提交">
</center>
</form>
<script language="javascript">
function allsel(n1,n2)
{
  while(n1.selectedIndex!=-1)
  {
  var indx=n1.selectedIndex;
  var t=n1.options[indx].text;
var v=n1.options[indx].value;
  n2.options.add(new Option(t,v));
  n1.remove(indx);
  }
}
//提交存值
function submitForm(){
n2 = document.form1.sel_place2;
n2_len= n2.options.length;
var n2_val='';
for(i=0;i<n2_len;i++){
n2_val+=n2.options[i].value;
if(i!=n2_len-1){
n2_val+='|';
}
}
alert(n2_val);//存值:例如:
}

//初始化反显 dfzhao
window.onload = function() {
n1 = document.form1.sel_place1;
n2 = document.form1.sel_place2;
init_val='sel1|sel5|sel3';
init_arra=init_val.split("|"); 
for (var i=0;i<init_arra.length ;i++ ) {
for(var x=0; x<n1.options.length ;x++){
if(init_arra[i]==n1.options[x].value){
n2.options.add(new Option(n1.options[x].text,n1.options[x].value));
n1.remove(x);
}
}
}
}

</script>

</body>
</html>
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