added the close button to the modal

git-svn-id: file:///var/www/svn/anahita/anahita/branches/search@17164 a933e228-e664-4d3f-8241-49479697c698
automatically add a close button for the modal

git-svn-id: file:///var/www/svn/anahita/anahita/branches/search@17165 a933e228-e664-4d3f-8241-49479697c698