function LoginBoxKlasse() {
	this.keepBoxActive = false;

	this.hideLoginBox = function() {
		if(this.keepBoxActive == false) {
			document.getElementById("login").style.top = "-70px";
			document.getElementById("login_user").style.visibility = "hidden";
			document.getElementById("login_pw").style.visibility = "hidden";
		}
	}

	this.showLoginBox = function() {
		document.getElementById("login_user").style.visibility = "visible";
		document.getElementById("login_pw").style.visibility = "visible";
		document.getElementById("login").style.top = "0px";
	}
	
	this.activate = function(Id, checkAgainst) {
		// alert("Rein " + document.getElementById(Id).value);
		if(document.getElementById(Id).value == checkAgainst) document.getElementById(Id).value = "";
		this.keepBoxActive = true;
	}
	this.deactivate = function(Id, checkAgainst) {
		// alert("Raus " + document.getElementById(Id).value);
		if(document.getElementById(Id).value == "") document.getElementById(Id).value = checkAgainst;
	}	
	
}

var loginbox = new LoginBoxKlasse();