JavaScript Is Not Working

My coding for JavaScript is not working and I can't figure out why. Can someone look it over and tell me what I am overlooking? This is for my JavaScript assignment the link below

Solution 1:

classnm is never set to anything other than 0...

Solution 2:

class is a javascript reserved word, rename all "class" to something else. E.g. "myClass"

Renaming "class" should make your code work, but I still see many minimal errors in your code like unclosed "head" tag, use of uninitialized variable, etc. Suggest you review it thoroughly.

Solution 3:

I ran your code in Firefox with the Firebug extension installed. It reported the following error.

class[classCtr] is undefined on Line 34

Line 34 is the following:

totalvalue = totalvalue + parseFloat(class[classCtr][2]);

This error is occurring because you increment classCtr on the previous line, so the call to class[classCtr] attempts to access something that hasn't yet been defined.

Also, classCtr isn't assigned an initial value, so will have the value unassigned. The first set of values will therefore be stored in classCtr[undefined].

You'll need to initialize classCtr when it is declared and then increment it after you've finished handling each class.