> About var declaration. In my understanding if I declare a variable using
> "var" in a function, it makes it available only in that function. Therefor,
> if I use << var map = new GMap2(document.getElementById("map_canvas")); >>
> it makes the function setBMSMakers() unable to find "map" and it returnes
> "map is not defined"
Yes.
That is why you would declare
var map ;
outside of any function at all, in order to create a global variable
called 'map'.
Then
map = new GMap2(...
with no 'var' re-uses the global variable and populates it as a GMap2
object.
It's basic javascript, no map trickery involved.
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