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Online Store - Product Options, Updating Prices

13 New Member
Hi All,

I am creating an online store kind of thing, in the backend you can specify product options, such as color, disk space etc etc..

On the frontend it outputs the options into a select box as below;

Expand|Select|Wrap|Line Numbers
  1. <select name="options" id="options" onchange="UpdateDisplay(this.options[this.selectedIndex].value)"> 
  2.   <option value="0">-- Base Product --</option>
  3. <!-- Option Value = Option ID -->
  4.   <option value="17">1.60GHz Intel Core 2 Duo (Included in price)</option>
  5.   <option value="18">1.80GHz Intel Core 2 Duo (add &euro; 296.89)</option>
  6. </select>                    
The onchange event triggers the script below;

Expand|Select|Wrap|Line Numbers
  1. case (id = "<%=rs1("id_value")%>"):
  2.  document.getElementById('checkout_button').innerHTML = '<input type="submit" name="buy" class="button-buy-big" alt="Buy" value="Buy" />';
  3.  document.getElementById('store_price').innerHTML = parseInt(document.getElementById('store_price').innerHTML) + parseInt(<%=rs1("price_impact_amt")%>);
  4.  document.getElementById('store_stock').innerHTML = '<img alt="In Stock" border="0" src="assets/images/template/theme_blue/icons/stocked.gif""> <%=Int(rs1("quantity"))%> stocked';
  5. break
The above javascript, changes the checkout button (disables it if out of stock for that option), if its not out of stock it updates the quantity and updates the price.

The price is held in a <span> tag that looks like this;
Expand|Select|Wrap|Line Numbers
  1. <span id="store_price">1,799.00</span>
The problem is, when i select the option it firstly does not append the original price, instead of running 1,799.00 + Option Amount it just appends Option Amount.

The main problem is that after it does this, it the user changes the option it will just append the new price onto the old total. which means the total still includes the option they just changed.

So to summarize, what i need to fix is;
  • I need it so that when the user selects an option, it will add the option amount to the "store_pric e" price.
  • I need it so when the user changes the option, it subtracts the original option amount and then appends the new one.

All help appreciated, i have spent way to much time trying to fix this..
Aug 8 '08 #1
2 1528
13 New Member
Anybody wanna give this a try?
Aug 9 '08 #2
13 New Member
Nevermind, i got this problem solved. If anyone else is having this problem, i just edited the source code of the below example;

http://www.intranetjou rnal.com/corner/configurator.ht ml
Aug 9 '08 #3

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