-<INPUT type="radio" name="geometry" value="parallel" checked>Parallel<br>
-<INPUT type="radio" name="geometry" value="equiangular">Equiangular<br>
-<INPUT type="radio" name="geometry" value="collinear">Collinear<br>
+<INPUT type="radio" name="PJ_Geometry" value="parallel" checked>Parallel<br>
+<INPUT type="radio" name="PJ_Geometry" value="equiangular">Equiangular<br>
+<INPUT type="radio" name="PJ_Geometry" value="equilinear">Equilinear<br>