<%
    '**************************************************************************
    ' CLASS: cRandom
    '    Calls randomize to seed the random number generator.
    '    Provides functions for returning ranged random integers or arrays of
    '    ranged random integers.
    '**************************************************************************
    Class cRandom
    
        ' Calling randomize to seed the random number generator at the time the 
        ' class is created seemed like a reasonable thing to do.
        Private Sub Class_Initialize()
            ' Check the VBScript documentation for the specifics relating
            ' to the Randomize function
            Randomize
        End Sub
        
        ' Terminate doesn't need to do anything for this class
        Private Sub Class_Terminate()
        End Sub
        
        '**********************************************************************
        ' FUNCTION:        RangedRandom
        ' PARAMETER:    lowerBound, the lowest allowable number to return
        ' PARAMETER:    upperBound, the highest allowable number to return
        ' RETURNS:        A random integer between lowerBound and UpperBound,
        '                inclusive
        '**********************************************************************
        Public Function RangedRandom( lowerBound, upperBound )
            RangedRandom = CInt((upperBound - lowerBound) * Rnd + lowerBound)
        End Function
        
        '**********************************************************************
        ' FUNCTION:  RangedRandomArray
        ' PARAMETER: lowerBound, the lowest allowable number to return
        ' PARAMETER: upperBound, the highest allowable number to return
        ' PARAMETER: arraySize, zero based number specifying the size of the array
        ' PARAMETER: duplicates, true or false to indicate whether duplicate
        '            random values are allowed in the array
        ' RETURNS:     A single dimension array sized to match the arraySize 
        '             parameter, containing random integers between lowerBound and 
        '             upperBound, inclusive
        '**********************************************************************
        Public Function RangedRandomArray(lowerBound, upperBound, arraySize, duplicates)
            Dim tempArray()
            Dim filledElements, tempValue, badValue, i
            
            ' resize the tempArray to hold the number of elements passed in the
            ' arraySize parameter
            Redim tempArray(arraySize)
        
            ' This is a loop counter, set it to 0
            filledElements = 0
        
            ' loop until filledElements is equal to the arraySize + 1
            Do until filledElements = arraySize + 1
            
                ' Call the RangedRandom function with the lowerBound and upperBoundparameters
                tempValue = RangedRandom( lowerBound, upperBound )
            
                ' Handle the case where we don't want duplicate values
                If duplicates = False Then
                    badValue = False
                    For i = 0 to UBound(tempArray)
                        ' check if the new random value already exists in the array
                        ' if it does set the badValue flag to true and break out of the loop
                        If tempValue = tempArray(i) Then
                            badValue = True
                            Exit For
                        End If
                    Next 
                    If badValue = False Then
                        tempArray(filledElements) = tempValue
                        filledElements = filledElements + 1
                    End If
                Else
                    ' Handle the case where duplicate values in the array are acceptable
                    tempArray(filledElements) = tempValue
                    filledElements = filledElements + 1
                End If
            Loop
        
            ' return the array
            RangedRandomArray = tempArray
        End Function
        
    End Class
%>
<%
    ' All the code that follows is example code showing the use of the
    ' cRandom class.
    
    Dim objRandom
    Dim flip
    Dim randomArray
    Dim rowsToTest
    Dim i, j
    
    ' create an instance of our class
    Set objRandom = New cRandom
    
    ' set the number of iterations that we want to test
    rowsToTest = 10
    
    ' "toggle" to determine whether or not we set the bgcolor of the table row
    flip = True
    
    ' Start the table
    Response.Write "<table border=0 cellpadding=1 cellspacing=1>"
    
    For j = 0 to rowsToTest
        ' We'll alternate the bgcolor of the table rows based on the
        ' value of the flip variable
        If flip Then
            Response.Write "<tr bgcolor=LightGrey>"
        Else
            Response.Write "<tr>"
        End If
        
        ' Call the RangedRandomArray function for testing purposes
        randomArray = objRandom.RangedRandomArray( 1, 100, 9, False )
        
        ' Output the contents of the array
        For i = 0 to UBound(randomArray)
            Response.Write "<td align=right width=30><font face=Verdana size=1>" & randomArray(i) & "</font></td>"
        Next
        Response.Write "</tr>"
        ' Toggle the flip boolean variable
        flip = Not flip
    Next
    
    ' Close the table
    Response.Write "</table>"
    
    ' Destroy the instance of our object
    Set objRandom = Nothing
%>