Yes.
It can be modified by editng the language xml files.
<resource name = "Page">Page</resource>
<resource name = "Slideshow">Start Slide Show</resource>
<resource name = "Stop">Pause Slide Show</resource>
<resource name = "Previous">Previous</resource>
<resource name = "Next">Next</resource>
<resource name = "Back_to_image_index">Back to image index</resource>
<resource name = "Help">Help</resource>
<resource name = "Home">Home</resource>
<resource name = "BatchBuild">Batch gallery index build</resource>
<resource name = "Full_screen">Full_screen</resource>
<resource name = "Windowed_screen">Windowed screen</resource>
<resource name = "Editinfo">Edit description</resource>
<resource name = "Total">Total</resource>
<resource name = "Images">Images</resource>
<resource name = "Prev">Prev</resource>
<resource name = "ImageUpload">Image Upload</resource>
<resource name = "Close">Close the Window</resource>
<resource name = "Send">Send</resource>
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