Rollover variable

any help

i want when rollover the button a value as [COLOR=Navy]“Delhi”[/COLOR] something like

(_global.cityname=[COLOR=Navy]“Delhi”[/COLOR]) this goes to an action script within the line

feedURL = “http://61.16.10.25/_flash/” +_global.cityname+".aspx";

i have to create many button which on rollover send the value of different cityname in the Action script URL

like

button1 = Delhi

button2= Sanjose