Using Javascript to alter ONE or TWO keywords in International Site

[doctorSIM]

Hi,

What is the best way to target a language that has slight variations in it without actually targetting specific countries?

Scenario:

Ecommerce site that sells mobile phones in Spanish, initially created to target Spanish from Spain. We call a mobile phone a "movil"

Now we want to target LatinAmerican users, which also use Spanish with variations, the most notable being mobile phone called "celular".

We don't want to create specific sites via new ccTLDs, nor subdomains, no directories for each new country, and we want to avoid having two sites - one for spain, one for latinamerica- given that the only major difference is we say MOVIL in spain and CELULAR in LatinAmerica.

What is Googles take if we simply decide to modify THAT specific keyword in each page where it is mentioned?  Either by:

a) Server based. IP Detect. that is, render the page with either one or the other term

b) Javascript based. i.e. Have BOTH terms on all pages but using Javascript show/hide according to user preferences.

c) Display the keywords with different font sizes/emphasis, depending on the visitor.

Any ideas?

[chris.kent]

BT buckets is great for showing different content to visitors from different locations. As far as google's take it is all about the default, so I would try and go for the most profitable of the two as the default(i.e. if spain had more search volume for "movil" than south america's term).