I have created a simple working gallery in Flash CS6 with AS3 and published it in SWF. Then I've inserted it with Dreamweaver into a empty HTML file and uploaded it to my host. The problem is that it loads and works but goes white after a few seconds, when i right click it, it reacts like a regular flash. Refreshing doesn't help it stays white and doesn't even work for those few seconds after the first load. My host is Hostinger Polska. I will provide any information if needed.
EDIT I've just found out with the help of the chrome dev tools that my SWF is canceled when loading the site but still i have no idea why. http://spektrum.edu.pl/test/Untitled-1.html
Your swif file works fine but the way you embed it is wrong. Remove all that dirty html and follow the manual here: https://code.google.com/p/swfobject/