// 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;
                   //alert(y);
               }
               // return true;
               }
        }