// JScript File
    function Total(txtcontrolName,strvalue,txtlblName)
   {
            var x; //To store value of multiplication
            var y; //To store Total amount
           if (CheckValidCharacter('0123456789',document.getElementById(txtcontrolName).value) == false)
           {
                alert('Please Enter Positive Numeric Amount.');
                document.getElementById(txtcontrolName).focus();
                x= ((document.getElementById('txtamtcalc').value) - (document.getElementById(txtlblName).value));                
                document.getElementById('txtamtcalc').value = x ;
                document.getElementById(txtcontrolName).value = "";
                document.getElementById(txtlblName).value = 0;
                //return false;
           }
           else
           {
             if(isNaN(document.getElementById(txtcontrolName).value)|| isNaN(document.getElementById('txtamtcalc').value)|| document.getElementById(txtcontrolName).value == "" || document.getElementById('txtamtcalc').value == "")
            {
                x= ((document.getElementById('txtamtcalc').value) - (document.getElementById(txtlblName).value));                
                document.getElementById('txtamtcalc').value = x ;
                document.getElementById('Amount').value = x;
                document.getElementById(txtlblName).value = 0;
            }
           else
           {
                x= ((document.getElementById('txtamtcalc').value) - (document.getElementById(txtlblName).value));                
                document.getElementById('txtamtcalc').value = x ;              
                x = parseFloat(document.getElementById(txtcontrolName).value) * strvalue; 
                y = x + parseFloat(document.getElementById('txtamtcalc').value);
                document.getElementById(txtlblName).value = x;
                document.getElementById('txtamtcalc').value = x - document.getElementById('txtamtcalc').value;
                document.getElementById('txtamtcalc').value = y ;
                document.getElementById('Amount').value = y;
           }
       }
    }