[Plugin: Basic Google Maps Placemarks] onclick from external link

hi, i really appreciate if someone can help me. i need open infowindow of particular marker from external link (via onclick, jquery, whatever). (http://dev9.freshme.cz/?page_id=10).

can someone help, please. sorry for my english. thanks a lot!

http://ww.wp.xz.cn/extend/plugins/basic-google-maps-placemarks/