var buttonAbmelden=document.getElementById('btn_logout');
	var loginForm=document.getElementsByTagName('form')[0];
	var pastedMess=document.getElementById('nachrichten-zahl2');
	var defaultText=document.getElementById('opt_abmelden');
	var isCookieTime = readCookie('UMB_time')==null?false:true;
	var isCookieSess = readCookie('UMB_lock')==null?false:true;
	var isCookieMess = readCookie('UMB_mess')==null?false:true;

	if(isCookieSess && isCookieTime){
		var readCookieTime = Number(readCookie('UMB_time'));
		var readCookieSess = decodeBase64(readCookie('UMB_lock'));
		var readCookieMess = decodeBase64(readCookie('UMB_mess'));
		var nowTime = new Date();
		nowTime=Number(nowTime.setTime(nowTime.getTime()));
		var differenz=nowTime-readCookieTime;
		if(differenz>1800000){
			eraseCookie('UMB_time');
			eraseCookie('UMB_lock');
			eraseCookie('UMB_mess');
			loginForm.style.display='block';
			pastedMess.style.display='none';
			buttonAbmelden.style.display='none';
			defaultText.style.display='none';
			loginForm.target='_parent';
			//document.getElementById('username').focus();
		}else{
			loginForm.style.display='none';
			pastedMess.style.display='block';
			buttonAbmelden.style.display='block';
			defaultText.style.display='block';
			buttonAbmelden.href='/Session/'+readCookieSess+'/Bye.wssp';
			buttonAbmelden.target='_parent';
			pastedMess.innerHTML=readCookieMess;
			document.getElementById('jle').target="_parent";
		}
		
	}