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- Use standard double quotes inside \textt.

    1: \label{Authoring_Adding_Pictures}
    2: To add a picture\index{picture} to a problem, the picture must first
    3: be uploaded to your authoring space, then published. Then, in the
    4: text area of your problem, add the following:
    5: 
    6: \texttt{<img src=\char`\"{}/res/DOMAIN/AUTHOR/directory-of-picture/picture.jpg\char`\"{} />}
    7: 
    8: where DOMAIN is the domain the picture is in, AUTHOR is the person who 
    9: published the picture, and the rest is the standard path to the picture.
   10: 
   11: It is also possible for advanced users to use a script variable in
   12: the place of the picture URL, like this:
   13: 
   14: \texttt{<img src=\char`\"{}\$picture\char`\"{} />}
   15: 
   16: and use the string variable \texttt{\$picture} in the script of the problem to 
   17: select from several possible pictures. If you do this, you will need
   18: to \textbf{Edit XML} for the problem and add the various graphics 
   19: used in the problem to the \texttt{$<$allow$>$} tags on the bottom.