<select name="diploma">
<option value=""> - </option>
{section name=diploma loop=$choix_diplomas}
-<option value="{$choix_diplomas[diploma]}">
- {$choix_diplomas[diploma]}
+{assign var=i value=$choix_diplomas[diploma]}
+{assign var=id value=$i-1}
+<option value="{$i}">
+ {$name_diplomas[$id]}
</option>
{/section}
</select>