function $(id) { return document.getElementById(id); } function dam(id,d) { if (t=$(id)) t.style.display=(d==2?'block':(d?'inline':'none')); } dam('bam2',0); dam('bam1',0); dam('lam0',0); var nam; for (nam=1; $('sam'+nam); nam++) dam('sam'+nam,0); nam=0; dam('lam2',0); function lam0() { dam('bam2',0); dam('bam1',0); dam('lam0',0); dam('gam0',1); }; function gam0() { dam('bam2',0); dam('bam1',2); dam('gam0',0); dam('lam0',1); }; function gam1() { dam('bam1',0); dam('bam2',2); } function lam2() { dam('sam'+nam--,0); dam('sam'+nam,1); dam('lam2',$('sam'+(nam-1))); dam('gam2',1); } function gam2() { dam('sam'+nam++,0); dam('sam'+nam,1); dam('lam2',1); dam('gam2',$('sam'+(nam+1))); }