Useful Attributes:

level // current level.
halflevel // current half level.

hp // current and max hit points.
hp-bloodied // bloodied value.
surge-value // your surge value.
surges // current and max number of surges daily.
tmp-hp // temporary hit points.

initiative // your initiative mod, this + 1d20 = your initiative. (Todo: Add roll button if Riley adds buttons with text.) 

speed // your speed in squares.

action-points // your current number of action points.

ac // your amour class.
fort // your fortitude.
ref // your reflex.
will // your will.

// attribute scores:
strength
constitution
dexterity
intelligence
wisdom
charisma
*attribute from above*-mod // (ie strength-mod) attribute modifier.
*attribute from above*-mod-level // (ie strength-mod-level) attribute modifier with half level.

passive-insight // your passive insight.
passive-perception // your passive perception.

// skills (all with half level). (Todo: Add roll button if Riley adds buttons with text.) 
acrobatics
arcana
athletics
bluff
diplomacy
dungeoneering
endurance
heal
history
insight
intimidate
nature
perception
religion
stealth
streetwise
thievery

Updates:

2014-04-23 14:27 :
Added Attack workspace and started item management.

2014-04-16 19:26 :
Full CSS reworking, almost all styles now controlled by css file (not dependant on roll20's base css file).

-Alex L.

2014-04-12 21:25 :
As everything in the D&D 4E sheet is now pretty much in working order, a proper readme file detailing special use cases and general how-to's could be useful? Intent would be for someone with zero knowledge of code should be familiar with how to use the sheet after reading this file. -Ville S.

2014-04-09 20:23 :
Updated html and css to resemble classic B/W 4th Edition character sheet.

ToDo:
Rolls - Waiting on Rileys response re:Buttons with text.

-Alex L.