Slackline Load Calculator
This is meant to be a portable file with no remote dependences, so the code style is not the best. This is a duplication of the form below, I have not checked the math involved for accuracy or suitability for any purpose, use at your own risk.
Based on the calculator at: https://docs.google.com/spreadsheet/ccc?key=0Aj--3-_IkjtLdEdmQnJ4bkFJZ0E4dXh5a2ZkeHFMa0E#gid=0