var fDesc=new Array(); fDesc[0] = "The way we designate track sections in MSTS is more closely related to model railroading terms than to the prototype. Prototype railroads measure curves by degrees while we use radius, switches (turnouts) are measured by numbers while we use degrees. When working from prototype information this can become a problem to know what sections to use."; 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 = ''; } }