Pop-Under Solution for new Chrome and other Browsers

TASK/REQUIREMENTS: - prepare "popunder" window, which is displayed after selecting checkbox - main window should not lose its focus, new *target* window should be opened in background - target window URL should be customizable - solution should work in modern browsers, especially for Chrome ver. 41 SUGGESTED SOLUTION: 1. use double binding to user's single click: first one on regular checkbox, second on *.swf movie clip in order to avoid browser blocking second window 2. first click should open new window with *target* page -> browser sets focus to that window 3. *.swf clip should open new *temp* tab next to *main* page which gets focus 4. immediately close *temp* tab right after it's loaded which will cause browser focus go back to closest tab, which in this case would be *main* page (Other solutions are also welcome)