Below are my doubts
If someone knows asp, please help me


* Collect form inputs and ensure that they are all 12 characters long

strBookID = Trim(Request.Form("INCLUDEID")) & "123"
strUserName = Trim(Request.Form("USERNAME")) & Space(9)

******** is the & simbol same as VFP ?
********what means & "123"? and & Space(9) ?


ascInStrBookID = Asc(Mid(strBookID,idx3,1))

*******what means function Asc , and idx3,1 ?
**** what means mid( ) ?


ascInStrUserName = Asc(Mid(strUserName,idx3,1))

** what means XOR, below ?

ascKeyChar1 = ascInStrUserName XOR ascInStrBookTitle XOR ascInStrSecretEdit XOR ascInStrBookID


*****chr( ) and &, below ?

strName = strName & chr(ascKeyChar1)


Do I need to use NEXT with for as below ?

Next

For idx4 = 1 to 12