用javascript实现邮件处理中的全部选择与读取选择[3]

在html中加入

<script language="javascript">

                            function selectall()

                            {

                                   var arrobj=document.all;

                                   if(document.form1.checkedall.checked)

                                   {

                                          for(var i=0;i<arrobj.length;i++)

                                          {

                                                 if(typeof arrobj[i].type != "undefined" && arrobj[i].type=='checkbox')

                                                 {