// JavaScript Document

// checks global nav menu status cookie and sets the globalnav to open or closed
var globalMenuStatus = readCookie("bapsGlobalnav");

document.write('<style type="text/css">');
if (globalMenuStatus == "0") {
	document.write('#globalMenu {display:none} #globalNav #globalMenuBtn {background-position: 0px -22px}');
} else {
	document.write('#globalMenu {display:block} #globalNav #globalMenuBtn {background-position: 0px 0px}');
}
document.write('</style>');

// window onload function
window.onload = function() {
	globalMenuCollapser();
}

// collapses and opens global nav and sets status in a cookie
function globalMenuCollapser() {
	var globalMenuBtn = document.getElementById('globalMenuBtn');
	var globalMenu = document.getElementById('globalMenu');
	if (globalMenuStatus == "0") {
		globalMenu.style.display = 'none'
	} else {
		globalMenu.style.display = 'block'
	}
	globalMenuBtn.onclick = function (){
		if (globalMenu.style.display == 'block') {
			globalMenu.style.display = 'none';  
			globalMenuBtn.style.background = 'url(/global_images/menu_expertise_btn.gif) 0px -22px';
			createCookie("bapsGlobalnav","0",7);
		} else {
			globalMenu.style.display = 'block'; 
			globalMenuBtn.style.background = 'url(/global_images/menu_expertise_btn.gif) 0px 0px';
			createCookie("bapsGlobalnav","1",7);
		}
		return false;
	}
	
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}