var fDesc=new Array(); fDesc[0] = "JTides is an advanced, accurate, easy-to-use tide and current prediction program. JTides predicts tides and currents using a large database of US and worldwide locations. It graphs its predictions in many useful ways. In comparison tests, JTides' predictions are in good to excellent agreement with a sampling of published and on-line tide tables (but read the caveat below)."; 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 = ''; } }