Thanks 1st for reply, the site is working fine because fortunetly i found the problem, which is i must have saved the page as utf-8, when i used the visual studio editor and from file>advanced save option i changed the encoding to utf-8 everything worked fine,
I do care and develop most of my pages in utf-8 not windows-1256 because most of hosts support only this encoding, but the question now is:
By default visual studio IDE save my pages as windows-1256 as it is the default encoding in my PC , so i have to change every page to utf-8 before saving and this is so boring so how to make the utf-8 as default?