<li><b>Author-controlable multiple choices</b>: <span class="tt wims_code_words">checkbox</span>,
 <span class="tt wims_code_words">click</span>, <span class="tt wims_code_words">menu</span>, 
 <span class="tt wims_code_words">radio</span>, <span class="tt wims_code_words">mark</span>, <span class="tt wims_code_words">flashcard</span><br/>
 These can be used to replace the standard multiple choice input, giving
 you more control on its appearance. The good answer should contain two
 fields, separated by a semi-colon <span class="tt wims_code_words">;</span>. The second field (after
 the semi-colon) is the list of choice texts, and the first field is a list
 of numbers of the good choices. In the case of <span class="tt wims_code_words">checkbox</span>
 and of <span class="tt wims_code_words">flashcard</span>, the user
 must check exactly all the good choices. For all the
 other cases, any good choice will be enough.
 In case of <span class="tt wims_code_words">flashcard</span>, the third line is showed on the hident face of the
 cards (default: interogation points).
 <p>
 For types <span class="tt wims_code_words">checkbox</span>, <span class="tt wims_code_words">menu</span> 
 and <span class="tt wims_code_words">radio</span> and <span class="tt wims_code_words">flashcard</span>, an option
 called <span class="tt wims_code_words">shuffle</span> can be specified, that has the 
 effect of randomly shuffling the order of items in the multiple choice 
 presented to students.
 <p>
 Automatic shuffle is not applied without the option <span class="tt wims_code_words">shuffle</span>,
 and the number of choice items is not automatically cut.
 <p>
 And for an opposite effect, the option word <span class="tt wims_code_words">sort</span> makes the items
 always presented in alphabetic order.
 <p>
 <span class="tt wims_code_words">click</span> should be used only in the case where there is no other
 replies or choices.
 <p>
 The type <span class="tt wims_code_words">menu</span> accepts an option <span class="tt wims_code_words">multiple</span> with value. The
 value of this option gives the maximal size (by default 8) of the choice
 window. For example, <span class="tt wims_code_words">multiple=5</span> gives a multiple menu window up
 to 5 lines.
 <p>
 <span class="tt wims_code_words">mark</span> works similarly as <span class="tt wims_code_words">checkbox</span>, with the difference
 that instead of a button, the chosen item itself will change color. It is
 therefore principally for inline use.
 <p>
 
 In case of <span class="tt wims_code_words">flashcard</span>, the choices (cards) are hident and the good choices 
 must be returned. With the option <span class="tt wims_code_words">show</span>, the cards are seen and the good choices
 must be hiden. The number of clicks on each cards are send in the second line of
 the variable <span class="tt wims_code_words">\reply</span>n. 
 
 <p>
 For types where several choices can be entered (<span class="tt wims_code_words">checkbox</span>,
 <span class="tt wims_code_words">mark</span>, as well as <span class="tt wims_code_words">menu</span> with option <span class="tt wims_code_words">multiple</span>),
 by default the student will be zero score whenever the answer is different
 from the given good answer. If you want to give partial score for partially
 good answers, you can add the option word <span class="tt wims_code_words">split</span> (synonym:
 <span class="tt wims_code_words">partialscore</span>. In this case, the partial score will be computed 
 according to the proportion of good answers picked by the student. On the
 other hand, if bad answers are picked, every bad answer will compensate
 two good answers until the score reaches 0. Such a policy is necessary,
 among others, for dissuading people from taking all the available choices
 in case there are many good ones.
 <p>
 While such a formula should fit most of the situations, you can add an
 option word <span class="tt wims_code_words">eqweight</span> if this is not your case. This word forces
 the computation to be of equal weight both positively and negatively,
 that is, every bad answer compensates only one good answer. But you are
 warned that this seemingly just policy may lead to weird effects!
 
Dans le cas d'utilisation de la commande <span class="tt wims_code_words">\embed</span>, il est possible de placer
précisément le k-ème item  en écrivant <span class="tt wims_code_words">\embed{r</span>n<span class="tt wims_code_words">,k}</span>
avec <span class="tt wims_code_words">n</span> le numéro de la question. Dans le cas de <span class="tt wims_code_words">flashcard</span>, on peut de plus 
préciser sur les deux lignes suivantes le style css des cartes (style associé à la balise div).
(il doit être le même pour chaque carte, dans le cas de style différent, c'est le dernier placé
qui est utilisé dans la réponse).
Par exemple,
<pre>
\embed{r1,4
style="display:inline-block;min-width:30px;min-height:30px;padding-top:10px;padding-bottom:5px;background-color:red;"
style="display:inline-block;min-width:30px;min-height:30px;padding-top:10px;padding-bottom:5px;background-color:blue;"
}
</pre>


