List of expressions :<BR>
<TEXTAREA   Name=TextArea1   Rows=18   Cols=48   Wrap=Off   >
//----- Variables
x = 3
y = 4

//----- Main expression
x * x  +  y * y
</TEXTAREA>&nbsp;


<TEXTAREA   Name=TextArea2   Rows=18   Cols=27   Wrap=Off   ></TEXTAREA><BR><BR>


 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
<INPUT   Type=BUTTON   Value="Evaluate lines"
   OnClick="TextArea2.value=StrLinesExpr_EvalEachLine(TextArea1.value);"   >



<SCRIPT>
/*
!------------------------------------------------------------------------------
! This program toolbox
!------------------------------------------------------------------------------
*/
/*
!---------------
! Evaluation routine
!---------------
! StrLinesExpr_EvalEachLine
!---------------
*/
//===== StrLinesExpr_EvalEachLine

function   StrLinesExpr_EvalEachLine   ( I_StrLinesExpr )
{
   var  L_Result ;
   var  L_ExprList = new Array();
   var  L_i       ;
   var  L_iResult ;

   //----- Split lines
   L_ExprList = I_StrLinesExpr.split ( '\r\n' );

   //----- Evaluate variable list
   L_Result = '' ;
   for ( L_i = 0 ; L_i < L_ExprList.length ; L_i++ )  {
      L_iResult = eval ( L_ExprList[L_i] );
      if (typeof(L_iResult) == 'undefined')
         L_Result += '\r\n'
      else  L_Result += L_iResult  +  '\r\n' ;
   }

   //----- Result : all evaluations
   return  L_Result ;
}
</SCRIPT>