// 日期正则1，yyyy-mmm-dd格式
var checkDatePar = /^\d{4}[-]\d{1,2}[-]\d{1,2}$/;

	function checkAll(e, itemName)
	{
	  var aa = document.getElementsByName(itemName);
	  for (var i=0; i<aa.length; i++)
	   aa[i].checked = e.checked;
	}

	function checkItem(e, allName)
	{
	  var all = document.getElementsByName(allName)[0];
	  if(!e.checked) all.checked = false;
	  else
	  {
	    var aa = document.getElementsByName(e.name);
	    for (var i=0; i<aa.length; i++)
	     if(!aa[i].checked) return;
	    all.checked = true;
	  }
	}
	
	function checkItem(e)
	{
		var aa = document.getElementsByName(e.name);
	    for (var i=0; i<aa.length; i++)
	     if(!aa[i].checked) return;
	}
	
	function checkNumber(e)
	{
		var aa = document.getElementsByName(e);
		var cnt=0;
	    for (var i=0; i<aa.length; i++){
	     if(aa[i].checked) 
	     	cnt=cnt+1;
	     }
	     if(cnt==0)
	     {
	     	alert("您还未选中数据!");
	     	return false;
	     }
	     if(cnt>1){
	     	alert("您只能同时修改一条数据!");
	     	return false;
	     }
	     return true;
	}
	function checkSelected(e)
	{
		var aa = document.getElementsByName(e);
	    for (var i=0; i<aa.length; i++){
	     if(aa[i].checked)
	     	return true;
	     }
	     alert("您还未选中数据!");
	}

	function changeType()
	{
		thisForm.action="list.jspa";
		thisForm.method="post";
		thisForm.submit();
	}
	//返回焦点		
	function mFocus(obj){
		obj.select();
		obj.focus();
	}
	
	//检查日期格式		
	function checkDate(checkDate){
		if(checkDate.value.length > 0){
			if(!checkDatePar.test(checkDate.value)) {
				alert("日期格式错误,请检查!");
				mFocus(checkDate);
				return false;
			}else{
				return true;
			}
		}else{
			return true;
		}		
	}
	
	//返回上一级
	function backward(url)
	{
		document.location = url;
	}
	
		//转换日期格式从原来的yyyymmdd到yyyy-mm-dd
	function changeDate(changeDate){
		return changeDate.substring(0,4) + "-" + changeDate.substring(4,6) + "-" + changeDate.substring(6,8);	
	}