- moved js from index.html to js\map.js
- added jQuery.XDomainRequest.js plugin so cross domain ajax works in IE
- chart marker dragging works in ie gte 9, FF, Safari, Chrome, but in IE the mouse has to be moved slowly
- deciding to rop develpoment for IE lte 8, it's not worth it because it doesn't support SVG
-----
- need to put mouseup handler for opening popups because currently they only open in firefox