var fDesc=new Array(); fDesc[0] = "Karel use simple programing language. Robot knows any elemetary commands. You learn robot more commands. Any new command is small structured program. Program xKarel is one from much todays xKarel's implementations. At the beginning, xKarel was a semestral work on the university. Now it is "open source" project."; 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 = ''; } }