dictionary for s_k

var s_k = 0;

var A = 222;

​

var map_value_to_s_k = {};

map_value_to_s_k[100] = 1;

map_value_to_s_k[200] = 2;

map_value_to_s_k[300] = 3;

map_value_to_s_k[400] = 4;

map_value_to_s_k[500] = 5;

map_value_to_s_k[600] = 6;

​

console.log(map_value_to_s_k)

​

for (key in map_value_to_s_k)

{

  if (A <= key)

  {

    s_k = map_value_to_s_k[key];

    break;

  }

}