// ############################## START FUNC ############################################
function determine_muliple_bonds(comb1, atom_sorts, d_atoms, t_atoms)
{

     var number_of_atoms=atom_sorts.length;
     var diff_connections=new Array(number_of_atoms);
       for(n=0;n<number_of_atoms;n++) diff_connections[n]="";
     var tupp=new Array(0);
     var parts=new Array(2);
// Will be splitted in last_branch_atom, n_passed_double_bond_atoms, n_passed_triple_bonds
     var n=0;
     var m=0;
     var temp="";

       for(n=0;n<number_of_atoms;n++){
       tupp=comb1[n].split("#");
       if(tupp[0]=="") continue;   // Or if not d_bond or t_bond
         for(m=0;m<tupp.length;m++){
         parts=tupp[m].split("*");
// The transferration to separate variables is made for clearness.
         last_branch_atom=parts[0];
         n_passed_double_bond_atoms=parts[1];
         n_passed_triple_bond_atoms=parts[2];
// -------------
          if(t_atoms.Check(n) && odd_or_not(n_passed_double_bond_atoms) && odd_or_not(n_passed_triple_bond_atoms)){
           if(diff_connections[n].indexOf("s"+last_branch_atom+" ")==-1) diff_connections[n]=diff_connections[n]+" s"+last_branch_atom+" ";
          }
// -------------
// Why diff_connections[n]=diff_connections[n]+... For non-s cases it is mainly for detection. Also s-atoms are set individually.

          if(atom_sorts[6] && atom_sorts[last_branch_atom]==6 && t_atoms.Check(n) && !odd_or_not(n_passed_double_bond_atoms) && odd_or_not(n_passed_triple_bond_atoms)){
           if(diff_connections[n].indexOf("t"+last_branch_atom+" ")==-1) diff_connections[n]=diff_connections[n]+" t"+last_branch_atom+" ";
          }
// -------------
          if(d_atoms.Check(n) && t_atoms.Check(last_branch_atom) && odd_or_not(n_passed_double_bond_atoms)){
           if(diff_connections[n].indexOf("s"+last_branch_atom+" ")==-1) diff_connections[n]=diff_connections[n]+" s"+last_branch_atom+" ";
          }
// -------------
          if(atom_sorts[n]==6 && atom_sorts[last_branch_atom]==6 && d_atoms.Check(n) && d_atoms.Check(last_branch_atom) && odd_or_not(n_passed_double_bond_atoms)){
           if(diff_connections[n].indexOf("d"+last_branch_atom+" ")==-1) diff_connections[n]=diff_connections[n]+" d"+last_branch_atom+" ";
          }
// ------------- 
// The fallowing markers is just for correctly checking aromaticity of a carbon (n) later.

          if(atom_sorts[n]==6 && atom_sorts[last_branch_atom]!=6 && d_atoms.Check(n) && d_atoms.Check(last_branch_atom) && odd_or_not(n_passed_double_bond_atoms)){
           diff_connections[n]=" o"+last_branch_atom;
          }
// -------------
         }
       }

// Every multiple bond is now marked twice, once for each neighbour

return diff_connections;

}
// ############################### end func ############################################