// JavaScript Document
var navElements = new Array("products", "system_galaxy", "sg_software", "sg_hardware", "500i", "600", "readers", "cards", "biometric", "cctv", "camera", "dvr", "badging", "support", "peripherals");

for(i = 0; i < navElements.length; i++)
{
	if(readCookie(navElements[i]) == "open")
	{
		expandMenu(navElements[i]);
	}
}

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);
}

// Menu functions
function expandMenu(divName)
{	
	if(document.getElementById(divName).style.display == "block")
	{
		document.getElementById(divName).style.display = "none";
		document.getElementById(divName+'-img').src = '/images/nav_plus-sub.gif';
		createCookie(divName, "closed", 14);
	}
	else
	{
		document.getElementById(divName).style.display = "block";
		document.getElementById(divName+'-img').src = '/images/nav_minus-sub.gif';
		createCookie(divName, "open", 14);
	}
}