比较全的JS checkbox全选、删除功能代码

<script language="javascript">
	function GoTodel(url){
	   if(confirm('确认删除吗？')){
           listmsgs.action=url;      [color=red]这一句很关键,可以通过js处理不同的ACTION[/color]
           listmsgs.submit();
	   }
	}
	function selectall(v){
	  var selectAllbul=false;
	  var f = document.forms["listmsgs"];
	  selectAllbul=document.listmsgs.code_Value.checked;
	  if(selectAllbul==true){
	    if(confirm("确认全选吗？")){
	       for (i=0;i<f.elements.length;i++)
	          f.elements[i].checked = v;
	    }else{
		   document.listmsgs.code_Value.checked=false;
		}
	  }else{
	     for (i=0;i<f.elements.length;i++)
	          f.elements[i].checked = v;
	  }
	}
</script>


<input type="checkbox" name="code_Value" value="<%=compact_id%>">


<input type="image" src="../../images/del.gif" onclick="javascript:GoTodel('/test/compact.do?method=deleteCompact&compact_id=<%=compact_id%>');">