Function imgSrcURI
Returns an img src URI encoded based on the OS of the server
string | 
		$uri | 
		uri in FILESYSTEM_CHARSET encoding | 
			string
		 | 
		string | 
Returns an img src URI encoded based on the OS of the server
string | 
		$uri | 
		uri in FILESYSTEM_CHARSET encoding | 
			string
		 | 
		string |