function calculateTotal() {
        var numofAC, numUser,numUsage;
        numofAC = parseInt(document.all['ctl00_ContentPlaceHolder1_tbNumberofAccounts'].value);
        numofUser = parseInt(document.all['ctl00_ContentPlaceHolder1_tbNumberofUsers'].value);
        numofUsage = parseInt(document.all['ctl00_ContentPlaceHolder1_tbUsage'].value);
        document.all['dvTotal'].innerHTML = "Total: $" + Math.round(((numofAC * accountsPrice(numofAC)) + (numofUser * .99) + storagePrice(numofUsage))*100)/100;
        document.all['lblTotal'].value = Math.round(((numofAC * accountsPrice(numofAC)) + (numofUser * .99) + storagePrice(numofUsage))*100)/100;
    }
    
    function accountsPrice(numofAC)
    {
        var i; i = numofAC;

        if (i == 1)
        {
            return 119.99;
        }
        if (i > 1 && i < 6)
        {
            return 113.99;
        }
        if (i > 5 && i < 16)
        {
            return 101.99;
        }
        if (i > 15 && i < 51)
        {
            return 95.99;
        }
        if (i > 50)
        {
            return 89.99;
        }
        return 0;
    }
    
    function storagePrice(numofUsage)
    {
        var i; i = numofUsage;
        return (i * .77 * 30 / 1000);

    }
    
    function agreement(value) {
        if (value)
        {
            document.all['btnPay'].disabled = false;
        }
        else
        {
            document.all['btnPay'].disabled = true;
        }
        calculateTotal();
}