FIXED Issue #17: Now positioning anchor based on the content of the container div

Modified "setGlobalPosition()"  to take into account the contents of the container div and the width of the document (considering scrollbars), then dynamically setting the anchor position on the page.

**Before**
![before](https://cloud.githubusercontent.com/assets/231639/2923159/7545878e-d70e-11e3-9448-bba81e50ad53.PNG)

**After**
![after](https://cloud.githubusercontent.com/assets/231639/2923161/7b01f900-d70e-11e3-9b0a-005125e0b350.PNG)