function click() {
if (event.button==2) {
alert('Copyright ©  Dr. Ladislav Hodek')
}
}

document.onmousedown=click

if(document.all) { visible = "visible"; hidden = "hidden"; }
if (document.getElementById) { visible = "visible"; hidden = "hidden"; }
if(document.layers) { visible = "show"; hidden = "hide"; }

obj='';
x=0;
function menuInit(no) {  
  if(document.all) menu = eval('document.all.'+no+'.style');
  if(document.layers) menu = eval('document.layers.'+no);
  if (document.getElementById) menu = eval('document.getElementById("'+no+'").style');
  obj=menu;
}

function menuOver(no) {  
  menuInit(no);
  x=1;
  obj.display = "";
}
function waitOut(no) {
  if (x==0) {
	  obj.display = "none";
  }
}

function menuOut(no) {
  x=0;
  setTimeout("waitOut('')",30)
}

function findObj(n, d) {
	if( window.mmIsOpera ) return(document.getElementById(item));
	if (document.all) return(document.all[item]);
	if (document.getElementById) return(document.getElementById(item));
	return(false);
}