public NullableScormTimeSpan(String value)
 {
     this.Value = new ScormTimeSpan(value);
 }
 public NullableScormTimeSpan(ScormTimeSpan value)
 {
     this.Value = value;
 }
 public ScormTimeSpan(ScormTimeSpan other)
 {
     this.Value = other.Value;
     this.Description = new LanguageString(other.Description);
 }
 public NullableScormTimeSpan(string value)
 {
     this.Value = new ScormTimeSpan(value);
 }
 public NullableScormTimeSpan(ScormTimeSpan value)
 {
     this.Value = value;
 }
 public ScormTimeSpan(ScormTimeSpan other)
 {
     this.Value       = other.Value;
     this.Description = new LanguageString(other.Description);
 }