How do I handle incremented varibles inside of URLRequest()

i trying set series of url links inside cycling button.  however, when try use variable, link sends me variable name instead of url.  below snippet of code:

 

//url variables

var lk1="http://www.firstlink.com";
var lk2="http://www.secondlink.com";
var lk3="http://www.thirdlink.com";
//

var mycount:number=1;

//
   navigatetourl(new urlrequest(lk[mycount]);
//

 

if use above code error "error #1010: term undefined , has no properties."

 

navigatetourl(new urlrequest(lk+[mycount]);

if use code error "1120: access of undefined property lk."

 

 

navigatetourl(new urlrequest("lk"+[mycount]);

and if use code links me "lk1" rather variable value of link.

 

what proper code incremented variable work inside of urlrequest ????

try using:

 

   navigatetourl(new urlrequest(this["lk"+string(mycount)]);

 

when use bracket notation build whole variable/instance name string inside brackets.

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