sorry, an update broke it all the link works now : http://www.fetedupanier.org/fete_du_panier.html
at first the map is something like 280 x 280 when hovering, it grows to 500 x 500 the markers are loaded at first, but when the map grows, only the markers in the 280x280 area are shown i tried to reinvoke jmap('addFeed' in the hovering call but it does ot fix it in fact, the gmap "useable" area seems to be defined for the size it has when calling jmap(init so my problem is how to redefine "on the fly" this useable area