Similar code to Web for RequestFocus

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25824 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3192 Offline - Online Gui Works! Offline Appspot under update

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25825 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e