var fDesc=new Array(); fDesc[0] = "RulesMaster Pro is the easy way to learn the nautical 'Rules of the Road'. It's a comprehensive, highly interactive learning guide to the International Regulations for Preventing Collisions at Sea (COLREGS), the US Navigation Rules (NavRules), the Canadian modifications to the Rules and IALA buoyage.

If you are studying for a commercial mariner's qualification, or Yachtmaster or Coastal Skipper, RulesMaster Pro is the easy way to learn or practice. It's ideal for exam preparation, and used by leading trainers worldwide."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }