function checkSubscribe()
{
	if (isEmpty('frmSubscribe','inpUserName'))
	{
		alert("Please enter your name");
		document.frmSubscribe.inpUserName.focus();
		return false;
	}
	
	if (isEmpty('frmSubscribe','inpEmailAddress'))
	{
		alert("Please enter your email address");
		document.frmSubscribe.inpEmailAddress.focus();
		return false;
	}
}
function isEmpty(frmName, elemName)
{
	if (eval('document.' + frmName + '.' + elemName).value == "" || eval('document.' + frmName + '.' + elemName).value == null)
	{
		return true;
	}
	else
	{
		return false;
	}
}