$B%a%C%;!<%8<hF@$N%P%0=$@5$H(BEnter$BEj9F$N5sF0$r=$@5(B

chatkey$B%/%(%jL5$7$G%m%0%$%s$7$F$-$?%f!<%6$O?7$7$$It20$r7z$F$k$H(B
$B$_$J$7!"(BuseID$B$r(BchatKey$B$H$9$k!#(B
$B$3$N(BchatKey$B$r(BAncestor$B$H$7$F%a%C%;!<%8$rEj9F!"8!:w$9$k(B
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   message$B$,(BAncestor$B%/%(%j$G8!:w$5$l$FJXMx(B!

input$B%U%#!<%k%I$G(BEnter$B$r2!$7$?;~$K(Bform$B$N(Bsubmit$B=hM}$,H/@8$7$F(B
$B5sF0$,$*$+$7$/$J$C$F$$$?$N$r=$@5!#(B
input$B%U%#!<%k%I$G(BEnter$B$r2!$9$HEj9F%\%?%s$r2!$9$N$HF1$8=hM}$r9T$$!"(B
form$B<+BN$N(Bsubmit$B$O$7$J$$$h$&$K$7$?!#(B
$B$D$$$G$KEj9F8e$K(Binput$B%U%#!<%k%IFb$r%/%j%"$9$k=hM}$r5-=R!#(B