text: **Transition alternatives.**There are two allowable transition alternatives – the modified- 
  prospective transition or the modified-retrospective transition. Under the modified- 
  prospective transition, we would begin applying the valuation and other criteria to 
  stock options granted beginning July 1, 2005. We would begin recognizing expense for 
  the unvested portion of previously issued grants at the same time, based on the valua- 
  tion and attribution methods originally used to calculate the disclosures. Under the 
  modified-retrospective transition, we would restate prior periods to reflect the previous- 
  ly calculated amounts in the pro forma disclosures as actual expenses of the prior 
  period (with no change in valuation or attribution methods). Future accounting would 