//global variables

var timerID = null;
var timerOn = false;
var timecount = 500;

function setcurrent(){
var currentpage = document.getElementById("projectsintro");
currentpage.style.display="block";
}


function initnav(){
setcurrent();
}

// show or hide the layers
function showLayer(layerName){
document.getElementById(layerName).style.display="block";
}

function hideLayer(layerName){
document.getElementById(layerName).style.display="none";
}

function hideAll(){
hideLayer('projectsintro');
hideLayer('projects1');
hideLayer('projects2');
hideLayer('projects3');
hideLayer('projects4');
hideLayer('projects5');
hideLayer('projects6');
hideLayer('projects7');
hideLayer('projects8');
hideLayer('projects9');
hideLayer('projects10');
hideLayer('projects11');
hideLayer('projects12');
hideLayer('projects13');
hideLayer('projects14');
hideLayer('projects15');
}