function check0()
{
	var by0=document.forms["by0"];
	if (IsNull(by0.email.value))
	{
		alert("Please input your E-mail!");
		by0.email.focus();
		return false;
	}
}
function check1()
{
	var by1=document.forms["by1"];
	if (IsNull(by1.FirstName.value))
	{
		alert("Please input your FirstName");
		by1.FirstName.focus();
		return false;
	}
	if (IsNull(by1.LastName.value))
	{
		alert("Please input your LastName");
		by1.LastName.focus();
		return false;
	}
/*	if (IsNull(by1.Email.value))
	{
		alert("Please input your Email");
		by1.Email.focus();
		return false;
	}*/
}
function check2()
{
}
function check4()
{
	var by4=document.forms["by4"];
	if (IsNull(by4.pwdkey.value))
	{
		alert("Please input your password Answer");
		by4.pwdkey.focus();
		return false;
	}
}
function check5()
{
	var by5=document.forms["by5"];
	if (IsNull(by5.new_pass.value))
	{
		alert("Please input your new password!");
		by5.new_pass.focus();
		return false;
	}
	if (IsNull(by5.re_pass.value))
	{
		alert("Import confirmation code");
		by5.re_pass.focus();
		return false;
	}
	if (by5.new_pass.value!=by5.re_pass.value)
	{
		alert("Two different input password, please re-entry. ");
		by5.new_pass.value="";
		by5.re_pass.value="";
		by5.new_pass.focus();
		return false;
	}
}