variables from variables

[reemo]

im tyring to use the value of one variable to provide part of the value for another.

----
var city = london;
var citytext = londontext;
var citybg = londonbg;

highlight(city,citytext,citybg);
----

the code above works- but im trying to avoid having to type in all three fields since they all include the word 'london'.

but when i try:
----
var city = london;
var citytext = city+text;
var citybg = city+bg;

highlight(city,citytext,citybg);
----
it doesnt work.

how should i be doing this?

[deadlock32]

var city = london;
var citytext = city+text;
var citybg = city+bg;

should be

var city = london;
var citytext = eval(city+"text");
var citybg = eval(city+"bg");

hopefully that works