function juneqn(bond_number,bonds,direction,cr,args,jun,filenumber)
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1 1996/08/08 16:38:50 peter
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Equations for both effort and flow on either zero or one junctions
% Same causality as junction
column = (3-jun)/2;
[causing_bond,n,other_bonds,m] = getindex(bonds(:,column),jun);
for i=other_bonds'
oneeqn(bond_number(i), jun, bond_number(causing_bond), jun, '', '',filenumber);
end;
% Opposite causality to junction
column = (3+jun)/2;
[caused_bond,n,other_bonds,m] = getindex(bonds(:,column),jun);
fprintf(filenumber, '%s\t:= \n', varname(bond_number(caused_bond),-jun));
for i=other_bonds'
term_sign = -direction(caused_bond,column)*direction(i,column);
fprintf(filenumber, '\t\t%s %s\n', sign2name(term_sign), ...
varname(bond_number(i),-jun));
end;
fprintf(filenumber, ';\n');