var cLID=1
function showdiv(cKeyID)
{
   if (cKeyID!=cLID)
   {
	document.getElementById("new"+cLID).style.display = "none";
	document.getElementById("new"+cKeyID).style.display = "block";
	document.getElementById("hf1").href="news.asp?cla=A00"+cKeyID;
	cLID=cKeyID
   }
   
}

function check()
{
	if(document.myform1.cUser.value=="")
	{
		alert("用户名不能为空！");
		myform1.cUser.focus();
		return false;
	}
	if(document.myform1.cPass.value=="")
	{
		alert("密码不能为空！");
		myform1.cPass.focus();
		return false;
	}
}