hi im a bit new to javascript ive got this project that im a bit stuck.here is how the script should work it mostly like a shopping cart but not using database.my script shoul have an option to change the value of each item in two different currency it depend on wich ever you choose it will the display the cost of that item next to it in its selected currency now thats fine and working next to it ,it will have a field were i will enter the quantity of the item and next to the quantity the will be a field called total. now that were im a bit lost i need to come up with a script that will automatically pick up the cost of that item and its quantity and calculate its total without pressing any calculate button or what so ever and it will display the total in its field.
hope some one can help
