//setup onload
window.onload=function(){onl();}


function show_guide(){

navt=document.getElementById("guides");
if (navt) {
navt.style.display="block";
navt.style.visibility="visible";
}

}

function onl() {

navt=document.getElementById("guides");
if (navt) {
navt.style.display="none";
navt.style.visibility="hidden";
}

}