// JavaScript Document
function toggleSub(submenu){
	    if (document.getElementById(submenu).style.display == 'none'){
		if(readCookie('myCookie')){
			document.getElementById(readCookie('myCookie')).style.display = 'none';
			eraseCookie('myCookie');		
		}
        document.getElementById(submenu).style.display = 'block';
		createCookie('myCookie', submenu, 365);		
	}else{
		document.getElementById(submenu).style.display = 'none';
		eraseCookie('myCookie');		
    }
}

function closeSub(){
		if(readCookie('myCookie'))		{
			document.getElementById(readCookie('myCookie')).style.display = 'none';
			eraseCookie('myCookie');		
		}
}

// creates a cookie to remember panel settings
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);
}