Localize()
FUNCTION: 
localize(<expression>)
This function evaluates <expression> using its own private copy of the global r-registers. That is, the global registers are saved before <expression> is evaluated and restored afterwards.
This allows the <expression> to alter the r-registers without affecting the softcode outside the localize() invocation.
In many ways, localize() is the same as ulocal() except that <expression> is given as an argument instead of stored on an attribute.