create separate add-this buttons for modern vs. ie7/8 . did this becuase of add-this expanded button bug on ie. removed reference to _gaq pagetrack for ajax analytics (did this because we switched to new analytics snippet which does not have _gaq function) Moved addthis script to bottom of page for performance boost. updated stylesheet to hide ie addthis button and show modern addthis button. added js hack for addthis positioning on IE (inside of pinnbank.js init function)