Javascript to sum drop down values
I have a need to be able to have a visitor make selections from several drop down lists and show a running total on the page of the values of the items they selected.
I downloaded a script that nicely does this for checkboxes they check...
here is a sample of my drop down list:
<select name="Cards">
<option value="100.00">EVGA</option>
<option value="200.00">ASUS</option>
</select>
If the visitor selects EVGA add $100.00 to the total and display - and so on...
Suggestions?
thank you in advance...