Feeling a bit "NumToCharred"...

[Richmond Mathewson]

I popped this in a button:

on mouseEnter
    set the useunicode to true
     set the unicodeText of fld "GUFF" to numToChar(43)
end mouseEnter

and I get a '+' in fld "GUFF" - exactly as wanted.

BUT . . .

on mouseEnter
    set the useunicode to true
    set the unicodeText of fld "GUFF" to numToChar(7749) && numToChar(43)
end mouseEnter

does not give me char 7749, a space and a '+'; it only gives me char 
7749 and a space

I wonder why?

Probably my syntax is incorrect . . .