jquery select

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http://www.blogjava.net/absolutedo/archive/2009/02/20/255790.html
 
<table width="95%" cellpadding="0" align="center" class="listshow" border="1" cellspacing="0">
 <tr>
     <td colspan="4" align="center">选择分包</td>
    </tr>
 <tr>
  <td class="black" width="30%" align="center" height="150">
              <select id="fb_list" multiple="multiple"  style="text-align:center;width:300px;height:150px;">
             
               </select> 
        </td>
        <td align="center" width="5%">
         <input type="button" id="add" value="添加>>" />
            <br/>
            <br/>
            <input type="button" id="delete" value="<<删除" />
        </td>
        <td class="black" width="30%" align="center">
         <select id="select_list" multiple="multiple" style=" text-align:center;width:300px;height:150px;">
                     
            </select>
        </td>
 </tr> 
</table>

jQuery代码:
/**
  *动态的给左边的下拉列表创建选项
  *具体情况可以从数据库读取数据动态创建选项
  */
$(document).ready(function(){
        for(var i=1;i<=5;i++)
        {
               $("#fb_list").append("<option value='"+i+"'>公开招标小型机采购00"+i+"</option>");  
        } 
})
$(function(){
     $("#add").click(function(){
              if($("#fb_list option:selected").length>0)
              {
                       $("#fb_list option:selected").each(function(){
                            $("#select_list").append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option");
                            $(this).remove();  
                       }) 
              }
              else
              {
                       alert("请选择要添加的分包！");
              }
       })
})

$(function(){ 
             $("#delete").click(function(){
                      if($("#select_list option:selected").length>0)
                      {
                               $("#select_list option:selected").each(function(){
                                          $("#fb_list").append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option");
                                           $(this).remove();  
                               }) 
                      }
                      else
                      {
                               alert("请选择要删除的分包！");
                      } 
           })
})