function CalculateMD(strSalesObj, strCommissionObj)
{
   var objSales = document.getElementById(strSalesObj);
   var objCommission = document.getElementById(strCommissionObj); 
   
   if (objSales && objCommission)
   {
        var valueToCalculate = objSales.value;       
        
        var commission=0;
        if (isNaN(valueToCalculate))
        {
            alert("please input a valid number");
        }
        else
        {
            // Changed as requested by JC on the 8th Jan 09
            // valueToCalculate *= 0.1;
            valueToCalculate *= 0.15;
            
            if ( valueToCalculate <=50000 )
            {
                commission = valueToCalculate * 0.3;
            }
            else if ( valueToCalculate > 50000 && valueToCalculate <=60000 )
            {
                commission = valueToCalculate * 0.31;
            }
            else if ( valueToCalculate > 60000 && valueToCalculate <=80000 )
            {
                commission = valueToCalculate * 0.32;
            }
            else if ( valueToCalculate > 80000 && valueToCalculate <=100000 )
            {
                commission = valueToCalculate * 0.35;
            }
            else if ( valueToCalculate > 100000 )
            {
                commission = valueToCalculate * 0.36;
            }
            
            commission = Math.round(commission*100)/100;
            
            objCommission.value = commission;
        }
    }
}
   
function CalculatePTA(strSalesObj, strCommissionObj)
{
   var objSales = document.getElementById(strSalesObj);
   var objCommission = document.getElementById(strCommissionObj); 
   
   if (objSales && objCommission)
   {
        var valueToCalculate = objSales.value;
        var commission=0;
        if (isNaN(valueToCalculate))
        {
        alert("please input a valid number");
        }
        else
        {
        
        // Changed as requested by JC on the 8th Jan 09
        // valueToCalculate *= 0.1;
        valueToCalculate *= 0.15;

        if ( valueToCalculate <=80000 )
        {
            commission = valueToCalculate * 0.6;
        }
        else if ( valueToCalculate > 80000 && valueToCalculate <=100000 )
        {
            commission = valueToCalculate * 0.61;
        }      
        else if ( valueToCalculate > 100000 )
        {
            commission = valueToCalculate * 0.62;
        }

        commission = Math.round(commission*100)/100;

        objCommission.value=commission;
        }
    }
}