I have a bit of a problem with some JS practice that doing, the error is:
Element referenced by ID/NAME in the global scope. Use W3C standard document.getElementById() instead.
You can see the site here: http://www.bambambam.co.uk/testing/JS/index2.html
I’m not experienced enough with JS to know what I’m doing wrong. All I want the site to do eventually is add up the prices of the items selected in the dropdown boxes, and then write the total to the total div.
Any help/ suggestions would be greatly appreciated. 
