We have a search field. It works like your normal everyday search field on many websites. BUT, there are two schools of thought over how to handle what happens when the user clicks in the field to adjust their search query after running their search at least once.
- User clicks in the search field and everything they have previously entered is selected. Type a single character and the entire entry is replaced with the character. See the search at MS clipart (I know, I know) as an example: http://office.microsoft.com/en-us/images/?CTT=97
- User clicks in the search field and everything they have previously entered is untouched. Type a single character and the entire entry remains with the single character appearing wherever the cursor entered the character string. Run a search at the ID blog as an example: http://www.interaction-design.org/
What are pros and cons for the two approaches?