Darrel, thank you a lot!
But now I have more questions?
1. What is PROTON+ (programming language?) ?
2. What is this for and how to use it :
Expi+
Expo
LookUp &LookDown
Beep (beep sound?)
(how to use it - i mean to write me something like this: LookDown something something...)
Is this code right:

counter var word
pulse var word

for counter = 1 to 50
gosub walk_left
gosub walk_right
next


Sound 35,120
walk_left:
for pulse = 0 to 10
pulsout 15, 820
pause 20
next
for pulse = 0 to 10
pulsout 14, 600
pause 20
next
Beep 35
return

walk_right:
for pulse = 0 to 10
pulsout 15, 680
pause 20
next
for pulse = 0 to 10
pulsout 14, 900
pause 20
next
return

lcdout "Hello"
lcdout "visit http://www.igorbogetic.co.sr"