function calc (form) {if (form.RepsPerformed.value < 10){     form.OneRepMax.value = Math.round(form.WeightLifted.value/(1.0278-0.0278*form.RepsPerformed.value));}  if (form.RepsPerformed.value == 10){     form.OneRepMax.value = Math.round(form.WeightLifted.value/0.75);}  if (form.RepsPerformed.value > 10){     alert ("Reps Performed must be between 1 and 10");}form.A.value = Math.round(form.OneRepMax.value*0.50);form.B.value = Math.round(form.OneRepMax.value*0.55);form.C.value = Math.round(form.OneRepMax.value*0.60);form.D.value = Math.round(form.OneRepMax.value*0.65);form.E.value = Math.round(form.OneRepMax.value*0.70);form.F.value = Math.round(form.OneRepMax.value*0.75);form.G.value = Math.round(form.OneRepMax.value*0.80);form.H.value = Math.round(form.OneRepMax.value*0.85);form.I.value = Math.round(form.OneRepMax.value*0.90);form.J.value = Math.round(form.OneRepMax.value*0.95);}