var imageArray_nf_stress_b_formula_90 = new Array();
imageArray_nf_stress_b_formula_90[0] = "nf-stress-b-formula-90-2";
imageArray_nf_stress_b_formula_90[1] = "nf-stress-b-formula-90-3";
imageArray_nf_stress_b_formula_90[2] = "nf-stress-b-formula-90-4";