var ex = new Array(); var im = new Array(); var c = new Array(); var y = new Array(); function sample(){ y[1] = 200; y[2] = 300; c[1] = 250; c[2] = 250; ex[1] = 50; im[1] = 100; ex[2] = 100; im[2] = 50; a1 = 0; for(s=1;s<3;s++){ a1=y[s]+im[s]-ex[s]-c[s]; } $("#memo").html(a1); }