[OpenLayers-Dev] refreshing layers in open layers

[ragunaat]

hi guys!!!!. . . . .Im doing a project in openlayers and im facing a problem
in refreshing layers. . . .i have two layers in my program . . . .First one
is to read a gpx file and it has to keep refreshing for every some time!!!.
. . . .And second layers is having a mapfile to display images. . . . so i
have to refresh the mapfile also when a gpx file get updated.

So here my problem is:
1)need to refresh the gpx layer for every sometime
2)and while refreshing the layers i have to change a external file by means
of some functions



Any kind of coding example pleaseee!!!! 

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