###################### A #######################

One common error is for the function "verify_frame_content". Often it is enough to just
click "run" again (some browsers). But the time delay for frame reloading must also be less then the time parameter in the row:
 window.setTimeout(function(){mega2(bitstrings,f_ligands,f_ex,angle_intervals,dist_intervals,groups,files,g_commands, saved);},200);

...in the document functions/mega2.txt
200 msek is probably enough on a fast browser and when all files are loaded offline. In other cases, it can be a good idea to use higher values. Other functions which use this kind of deley is the JavaScript in the reloaded alt.htm, and file functions/mega0.txt and functions/mega1.txt.

###################### B #######################

In order to introduce a new feature or functional group, you have to make changes at three locations.

If you have forgot to make theese changes, the fallowing error will typically occur:


   Error Type #undefined# är null eller inte ett objekt
   Function Name place_bits
   Document Name file://C:WINDOWSSkrivbordspecial-saml-manipalt.htm
   Error on Row 91
"
tupp2=temp.split(" ");
temp=slutmatrix[n][m][3];
tupp3=temp.split(" ");
temp=slutmatrix[n][m][4];
tupp4=temp.split(" ");
"

The changes you have to make is:

1) In intervalspec.txt at two places:
a) X                    =the number of origin features
b) Put the feature in the list with a GROUP number <= "the number of deposit groups"

2) In the file "feature_list.txt" with a FEATURE number <= "the number of origin features" according to intervalspec.txt

3) In functions/recognize_features.txt you must define the group for a unique pattern. If you want to know a pattern in a molecule, put in parent.right.document.write(patterns) as
row 1 in the function and make a run as "single molecule" to retrieve all patterns.

##################### C ########################

If "the number of origin features" in the file "feature_list.txt" is set higher then the fallowing number of rows beneath (which must not happen), this error occurs:

   Error Type #0# är null eller inte ett objekt
   Function Name mega1
   Document Name file://C:WINDOWSSkrivbordspecial-saml-manipalt.htm
   Error on Row 40

"
for(n=startrow;n<endrow;n++){
maxg=Math.max(maxg,rmatrix[n][0]);
}
"

################################################