what's problem with ctrl-pgup

[<Lechee.Lai@xxxxxxxxxxxx>]

Hello,
  I've trying assign ctrl-pgup as bob I'm using Gnome-terminal
  default gnome-terminal ctrl-pgup must "ESC[5;~"
  I'm assign setkey as "\e[5;~" which not work in jed
  so I've  setkey("bob","\e[5;");
  the keybinding can work in jed but extra "5~" is insert in text
  how can I solve this problem

Thanks 
Lechee