// Validate login form
function ValidateLogin(f)
{

	// Get reference to fields
	UserName = f.j_username
	Password = f.j_password

	// Trim spaces from beginning and end of fields
	UserName.value = UserName.value.replace(/^\s+/,"").replace(/\s+$/,"")
	Password.value = Password.value.replace(/^\s+/,"").replace(/\s+$/,"")

	// If either field is empty, show alert and do not allow form to be posted
	if (UserName.value == "" || Password.value == "")
	{
		alert("Username and Password are required.")
		return false
	}
	
	// If both fields have been completed, allow form to be posted
	else
	{return true}

}