Hello Chafik, and welcome to the forums.
Those two lines may be changed in the admin panel under layout->top and layout->divider. Have fun translating, and if you want, you can share your work when you're done.
Thanks for reply
Sure I will share my arabic translation as soon as I finish it
Riight now, I tried : admin panel under layout->top and layout->divider
After making the changes, the script says: settings saved !! but nothing is saved !! the string is still there !!
So I directely translated the two files top.txt and devider.txt
This was probably due to the fact that those two files was not properly chmodded, and the script didnot reported it