function setCookie(name, value, path) {	
	var today = new Date();
	var expdate = new Date ();
	expdate.setTime(today.getTime() + (1000*60*60*24*365));
	
  document.cookie= name + "=" + escape(value) +
        "; expires=" + expdate +
        ((path) ? "; path=" + path : "");
}

function deleteCookie(name, path) {
    //if (getCookie(name)) {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    //}
}

function SHSub (oid,dir)
{	
	var obj=document.getElementById(oid);
	if (obj.style.display=='none')
	{
		obj.style.display='block';
		setCookie(oid, true, dir);
	}
	else
	{
		obj.style.display='none';
		deleteCookie(oid,dir);
	}
}