// JavaScript Document

function showmenu() {
	document.getElementById('leftnav_main').style.display = "block";
	document.getElementById("show_mainmenu").style.display = "none";
}

function showlayer(l) {
        hidelayers();
        document.getElementById(l+"_layer").style.visibility = 'visible';
        document.getElementById(l+"_layer").style.display = 'block';
        document.getElementById(l+"_layer").style.zIndex = '200';
}
function hidelayers() {
        document.getElementById("press_layer").style.visibility = 'hidden';
        document.getElementById("press_layer").style.display = 'none';
        document.getElementById("press_layer").style.zIndex = '0';
        document.getElementById("contact_layer").style.visibility = 'hidden';
        document.getElementById("contact_layer").style.display = 'none';
        document.getElementById("contact_layer").style.zIndex = '0';
}
function layer_out(e) {
        if (!e) var e = window.event;
        var tg = (window.event) ? e.srcElement : e.target;
        if (tg.nodeName == 'A') return;
        hidelayers();
}

function swapimg(img,src) {
	img.src = "img/" + src + ".gif";
}
function btoswap(direction) {
	if (direction == 'in') {
		swapimg(document.getElementById("btoimg"),"arrow_w_left_double");
	}
	else {
		swapimg(document.getElementById("btoimg"),"arrow_g_left_double");
	}
}


if (document.getElementById("dheader") != null) {
if (document.getElementById("dheader").addEventListener){
        document.getElementById("dheader").addEventListener('mouseover', layer_out, false);
        document.getElementById("headernav").addEventListener('mouseover', layer_out, false);
        document.getElementById("headernav_search").addEventListener('mouseover', layer_out, false);
}
else if (document.getElementById("dheader").attachEvent){
        document.getElementById("dheader").attachEvent('mouseover', layer_out);
        document.getElementById("headernav").attachEvent('mouseover', layer_out);
        document.getElementById("headernav_search").attachEvent('mouseover', layer_out);

        document.getElementById("press_layer").attachEvent('mouseout', layer_out);
        document.getElementById("contact_layer").attachEvent('mouseout', layer_out);
}
}