jscript regExp expert needed.

["mmqp" <mmqp@xxxx>]

Hello,

Does anyone know how to test for an regExp where the expression is 
stored in an variables in jscript. I am looking for a similar way as 
Perl regExp operation.

example:
in Perl.

if ( $line ~= /$date/ ) {....

where $date is a variable that contains regExp that is built on-the-
fly.

in Jscript, the only way to build regExp is:

re = /literal Expression/i; // I'd like this to be dynamically built.

then it can be used as follow:

if ( s.match ( re )) {....

thanks in advance.