waysun一路陽光

1.
<td width="5%" class=content><div align="center">全選<input type=checkbox name = "check" onclick = "javascript:allcheck();"></div></td>
2.   
 <td width=5%>
       <div align="center">
        <input type="checkbox" name="checkboxDelete"
         value="<bean:write name="po" property="projectid" />">
       </div>
      </td>

js代碼:
 <script language="javascript">
 var tag = false;
function doDelete()
{
 if(deletecheck())
 {
     var theForm=document.projectSetForm;
  theForm.action = "projectSet.do?do=delete&lotId=<%=request.getParameter("lotId") %>";
  theForm.submit();
 
 }
}
function deletecheck()
{
 var theForm = document.projectSetForm;
 var checked = false;
 if(typeof(theForm.checkboxDelete.length)=="undefined"){
  if(theForm.checkboxDelete.checked == true){
  checked = true;
  }
 }else{
 var len = theForm.checkboxDelete.length;
 for (var i=0;i<len;i++){
  if(theForm.checkboxDelete[i].checked == true){
  checked = true;
  break;
  }
   }
 }
 if(!checked){
 alert("請至少選擇一條要刪除的記錄！")
 return(false);
 }
 
 if(confirm("確定要刪除嗎？")){
  return(true);
  }
 return(false);
}
function allcheck(){
 var theForm = document.projectSetForm;
 var len = theForm.checkboxDelete.length;
 var i = 0
 if (tag == false)
  for (i=0;i<len;i++){
   theForm.checkboxDelete[i].checked = true;
   tag = true;
   }
  
 else{
  for ( i=0;i<len;i++){
   theForm.checkboxDelete[i].checked = false;
   tag = false;
  }
 }
}
</script>