function calc() 
{
  // initialization:
  var Signs   = 0; 
  var Risk    = 0;
  var Disease = 0;

    
  // ************ disease to be deceased of calculation: *****************
  if( document.forms[0].CVD.checked )
    Disease += parseInt(document.forms[0].CVD.value);
  
  if( document.forms[0].PD.checked )
    Disease += parseInt(document.forms[0].PD.value);
  
  if( document.forms[0].MD.checked )
    Disease += parseInt(document.forms[0].MD.value);

    
  // ********* signs of the time calculation: ***************
  if( document.forms[0].Angina.checked )
    Signs += parseInt(document.forms[0].Angina.value); 
  
  if( document.forms[0].Breath.checked )
    Signs += parseInt(document.forms[0].Breath.value);
  
  if( document.forms[0].Faint.checked )
    Signs += parseInt(document.forms[0].Faint.value);
  
  if( document.forms[0].Apnea.checked )
    Signs += parseInt(document.forms[0].Apnea.value); 
  
  if( document.forms[0].Edema.checked )
    Signs += parseInt(document.forms[0].Edema.value); 
  
  if( document.forms[0].Palp.checked )
    Signs += parseInt(document.forms[0].Palp.value);
  
  if( document.forms[0].Claud.checked )
    Signs += parseInt(document.forms[0].Claud.value);
  
  if( document.forms[0].Murmur.checked )
    Signs += parseInt(document.forms[0].Murmur.value);
  
  if( document.forms[0].Fatigue.checked )
    Signs += parseInt(document.forms[0].Fatigue.value);

  // ****************** risk makes life exciting *************  
  if( document.forms[0].FH.checked )
    Risk += parseInt(document.forms[0].FH.value);
  
  if( document.forms[0].Smoke.checked )
    Risk += parseInt(document.forms[0].Smoke.value);
   
  if( document.forms[0].BP.checked )
    Risk += parseInt(document.forms[0].BP.value);
   
  if( document.forms[0].Chol.checked )
    Risk += parseInt(document.forms[0].Chol.value);
  
  if( document.forms[0].Glucose.checked )
    Risk += parseInt(document.forms[0].Glucose.value);
  
  if( document.forms[0].Fat.checked )
    Risk += parseInt(document.forms[0].Fat.value); 
  
  if( document.forms[0].FH.checked )
    Risk += parseInt(document.forms[0].FH.value); 
  
  if( document.forms[0].Act.checked )
    Risk += parseInt(document.forms[0].Act.value);
  
  if( document.forms[0].HDL.checked )
    Risk += parseInt(document.forms[0].HDL.value);
  
  
  // for debugging purposes only:
  //alert( "Disease: " + Disease + ", signs: " + Signs + ", risk: " + Risk );
  
  if( (Disease==1) || (Signs > 0) ) // <-- there was a FUNDAMENTAL BUG here!!!!
  {
     document.forms[0].Risk.value ="High";
     document.forms[0].Sub.value  ="Recommended";
     document.forms[0].Max.value  ="Recommended";
     document.forms[0].Mod.value  ="Recommended";
     document.forms[0].Vig.value  ="Recommended"; 
     return;
  }   
  
  if ( document.forms[0].Age.checked || (Risk > 1) ) // <-- that's what you probably meant - VP
  {
     document.forms[0].Risk.value ="Moderate"
     document.forms[0].Sub.value  ="Not Necessary"
     document.forms[0].Max.value  ="Recommended"
     document.forms[0].Mod.value  ="Not Necessary";
     document.forms[0].Vig.value  ="Recommended"; 
     return;
  }
  
  // VP modified it from common sense reasons!!!!
  if( Risk <= 1 )
  {
     document.forms[0].Risk.value ="Low"
     document.forms[0].Sub.value  ="Not Necessary"
     document.forms[0].Max.value  ="Not Necessary"
     document.forms[0].Mod.value  ="Not Necessary"
     document.forms[0].Vig.value  ="Not Necessary"
  }
}