I modified the function checkboxAdd(txtBwayEDUGift) to add a $5.00 amount to the total cart order when the checkbox txtBwayEDUGift is checked. It is currently reducing the cart total $5.00 when unchecked, however, it is not adding $5.00 to the cart total when txtBwayEDUGift is checked. I can supply more information if needed. Thank you in advance for your help.


Code:
01.<script type="text/javascript">   
02.    function calculate(increment, indexer)   
03.    {   
04.        var price = document.getElementById("divPrice" + indexer);   
05.        var dPrice = price.innerHTML;   
06.        dPrice = dPrice.replace("$","");   
07.        dPrice = dPrice * 1;   
08.        var subtotal = document.getElementById("txtSubTotal" + indexer);   
09.        var dSubtotal = subtotal.value;   
10.        dSubtotal = dSubtotal.replace("$","");   
11.        dSubtotal = dSubtotal.replace(",","");   
12.        dSubtotal = dSubtotal * 1;   
13.        var tableRow = document.getElementById("tr" + indexer);   
14.        if (increment == "A")   
15.        {   
16.            var newTotal = dSubtotal + dPrice;   
17.            subtotal.value = "$" + newTotal.toString();   
18.            calculateTotal(dPrice, "A");   
19.            tableRow.style.backgroundImage = "url('images/otTableRowSelect.jpg')";   
20.        }   
21.        else if (increment == "S")   
22.        {   
23.            if (dSubtotal > 0)   
24.            {   
25.                var newTotal = dSubtotal - dPrice;   
26.                if (newTotal == 0)   
27.                {   
28.                    subtotal.value = "";   
29.                    calculateTotal(dPrice, "S");   
30.                    tableRow.style.backgroundImage = "";   
31.                    img = document.getElementById("imgSub" + indexer);   
32.                    img.focus();   
33.                }   
34.                else  
35.                {   
36.                    subtotal.value = "$" + newTotal.toString();   
37.                    calculateTotal(dPrice, "S");   
38.                    img = document.getElementById("imgSub" + indexer);   
39.                    img.focus();   
40.                }   
41.            }   
42.        }   
43.        var price2 = document.getElementById("divPrice" + indexer);   
44.        var dPrice2 = price2.innerHTML;   
45.        dPrice2 = dPrice2.replace("$","");   
46.        dPrice2 = dPrice2 * 1;   
47.        var subtotal2 = document.getElementById("txtSubTotal" + indexer);   
48.        var dSubtotal2 = subtotal2.value;   
49.        dSubtotal2 = dSubtotal2.replace("$","");   
50.        dSubtotal2 = dSubtotal2 * 1;   
51.        var txtQnty = document.getElementById("txtQnty" + indexer);   
52.        var qnty = (dSubtotal2/dPrice2);   
53.        if (qnty == 0)   
54.        {   
55.            txtQnty.value = "";   
56.        }   
57.        else  
58.        {   
59.            txtQnty.value = qnty;   
60.        }   
61.    }   
62.    function calculateTotal(amountIn, type)   
63.    {   
64.        var total = document.getElementById("txtTotal");   
65.        var dTotal = total.value.toString().replace("$","");   
66.        dTotal = dTotal.replace(",","");   
67.        dTotal = dTotal * 1;   
68.        if (type == "A")   
69.        {   
70.            var newTotal = dTotal + amountIn;   
71.            total.value = "$" + newTotal;   
72.        }   
73.        else if (type == "S")   
74.        {   
75.            var newTotal = dTotal - amountIn;   
76.            if (newTotal == 0)   
77.            {   
78.                total.value = "";   
79.            }   
80.            else    
81.            {   
82.                newTotal = addCommas(newTotal);   
83.                total.value = "$" + newTotal;   
84.            }   
85.        }   
86.    }   
87.    function validateAmt(obj, type) //type, 0=OT League, 1=Straz   
88.    {   
89.        var divPrevAmt;   
90.        if (type == 0)   
91.        {   
92.            divPrevAmt = document.getElementById("divBwayGiftPrevAmt");   
93.        }   
94.        else if (type == 1)   
95.        {   
96.            divPrevAmt = document.getElementById("divBwayEDUGiftPrevPmt");   
97.        }   
98.        var txtAmt = document.getElementById(obj);   
99.        var amt = txtAmt.value;   
100.        amt = amt.toString().replace("$","");   
101.        amt = amt.replace(",","");   
102.        var prevAmt = divPrevAmt.innerHTML;   
103.        try  
104.        {   
105.            amt = amt * 1;   
106.        }   
107.        catch(err)   
108.        {   
109.            txtAmt.value = "";   
110.            return;   
111.        }   
112.        if (amt >= 0) //get the previous amount if any   
113.        {   
114.            if (type == 0)   
115.            {   
116.               if (prevAmt.toString().length > 0)   
117.               {   
118.                    prevAmt = prevAmt * 1;   
119.               }   
120.               else  
121.               {   
122.                    prevAmt = 0;   
123.               }   
124.            }   
125.            else if (type == 1)   
126.            {   
127.               if (prevAmt.toString().length > 0)   
128.               {   
129.                    prevAmt = prevAmt * 1;   
130.               }   
131.               else  
132.               {   
133.                    prevAmt = 0;   
134.               }   
135.            }   
136.        //now update the master total   
137.        var total = document.getElementById("txtTotal");   
138.        var dTotal = total.value.toString().replace("$","");   
139.        dTotal = dTotal.replace(",","");   
140.        dTotal = dTotal * 1;   
141.        var newTotal = dTotal - prevAmt;   
142.        newTotal = newTotal + amt;   
143.        divPrevAmt.innerHTML = amt.toString();   
144.        newTotal = addCommas(newTotal);   
145.        amt = addCommas(amt);   
146.        txtAmt.value = "$" + amt;   
147.        total.value = "$" + newTotal;   
148.       }   
149.       else  
150.       {   
151.            txtAmt.value = "";   
152.            return;   
153.       }   
154.    }   
155.    function disable()   
156.    {   
157.        var txtTotal = document.getElementById("txtTotal");   
158.        var txt = txtTotal.value;   
159.        txtTotal.value = txt;   
160.        var BwayGift = document.getElementById("txtBwayGift");   
161.        BwayGift.focus();   
162.    }   
163.    function addCommas(nStr)   
164.    {   
165.        nStr += '';   
166.        x = nStr.split('.');   
167.        x1 = x[0];   
168.        x2 = x.length > 1 ? '.' + x[1] : '';   
169.        var rgx = /(\d+)(\d{3})/;   
170.        while (rgx.test(x1)) {   
171.            x1 = x1.replace(rgx, '$1' + ',' + '$2');   
172.        }   
173.        var newTotal = x1 + x2;   
174.        if (newTotal.toString().indexOf(".") != -1)   
175.        {   
176.            newTotal = newTotal.substring(0,newTotal.indexOf(".") + 3);   
177.        }   
178.        return newTotal;   
179.    }   
180.    function checkChanged()   
181.    {   
182.        var cb = document.getElementById("cbOperaGala");   
183.        if (cb.checked == true)   
184.        {   
185.            var tableRow = document.getElementById("trCheckbox");   
186.            tableRow.style.backgroundImage = "url('images/otTableRowSelect.jpg')";   
187.        }   
188.        else if (cb.checked == false)   
189.        {   
190.            var tableRow = document.getElementById("trCheckbox");   
191.            tableRow.style.backgroundImage = "";   
192.        }   
193.    }   
194.    function alertIf()   
195.    {   
196.        var i = 0;   
197.        for (i=5;i<=10;i++)   
198.        {   
199.            try{   
200.            var subtotal2 = document.getElementById("txtSubTotal" + i);   
201.            var dSubtotal2 = subtotal2.value;   
202.            dSubtotal2 = dSubtotal2.replace("$","");   
203.            dSubtotal2 = dSubtotal2 * 1;}   
204.            catch (Error){dSubtotal2 = 0}   
205.            if (dSubtotal2 > 0)   
206.            {   
207.                alert("You have selected the I want it all package, \n however you have also selected individual tickets to the same events. \n If you meant to do this, please disregard this message.");   
208.                break;   
209.            }   
210.        }   
211.    }   
212.       
213.    function disableEnterKey(e)   
214.    {   
215.     var key;         
216.     if(window.event)   
217.          key = window.event.keyCode; //IE   
218.     else  
219.          key = e.which; //firefox         
220.  
221.    return (key != 13);   
222.    }   
223.    //Add $5.00 donation to cart   
224.    function checkboxAdd(txtBwayEDUGift)    
225.    {   
226.        if (txtBwayEDUGift.checked == true) {   
227.            // alert("adding $5");   
228.            calculateTotal(5, "A");   
229.        } else {   
230.            //alert("deducting $5");   
231.            calculateTotal(5, "S");   
232.        }   
233.    }   
234.    //note this only works in newer browsers. if older browsers are of concern then you should adapt accordingly   
235.    document.addEventListener('DOMContentLoaded',   
236.                           checkboxAdd(document.getElementById('txtBwayEDUGift')));   
237.  
238.  
239.    </script>