function navTo(x) { }

function brainOn(n) {
  e = eval("roll" + n);
  if (e) { e.style.visibility = 'visible'; }
}

function brainOff(n) {
  e = eval("roll" + n);
  if (e) { e.style.visibility = 'hidden'; }
}

function movemenu(){
if(xpos>4){xpos=0;}
if(xpos<-200){xpos=-200;}
xpos=xpos+4*a;
if(document.layers){
document.contents.left=xpos;
}
if(document.all){
document.all.contents.style.left=xpos;
}
if(!document.all && document.getElementById){
document.getElementById("contents").style.left=xpos+"px";
}
if (xpos<=-200 || xpos>=0){
window.clearTimeout(Id);Id=0;}
else{
Id = window.setTimeout("movemenu();",100);
}

}