function checkedLogion(){
    var  User =　document.getElementById("LogUser").value.replace("'", "").replace("--", "").replace(";", "").replace("\"", "");
    var  Pwd  = document.getElementById("LogPass").value.replace("'", "").replace("--", "").replace(";", "").replace("\"", "");
    if(User=="")
    {
        alert("Username can't be empty !");
        return;
    }
    if(Pwd=="")
    {
        alert("Password can't be empty !");
        return;
    }
    document.getElementById("LoginForm").submit();
}
function focusLogn()
{
	document.getElementById("LogUser").value="";
	document.getElementById("LogUser").style.display="";
	document.getElementById("LogUser1").style.display="none";
	document.getElementById("LogUser").focus();
}
function blcusLogn()
{
	var  User =　document.getElementById("LogUser").value;
	if(User ==""){
		document.getElementById("LogUser").style.display="none";
		document.getElementById("LogUser1").style.display="";
	}
}
function focusPass()
{
	document.getElementById("LogPass").style.display="";
	document.getElementById("LogPass1").style.display="none";
	document.getElementById("LogPass").focus();
}
function blcusPass()
{
	var  Pwd =　document.getElementById("LogPass").value;
	if(Pwd==""){
		document.getElementById("LogPass").style.display="none";
		document.getElementById("LogPass1").style.display="";
	}
}