var flagLoginOpen = 0;
var movePosition = -5;
var isPosition = -87;


function switchLogin(){
	
	if(flagLoginOpen == 0){
		isPosition += 4;
		if(isPosition < movePosition){
			window.setTimeout('switchLogin()',30);
		}else{
			flagLoginOpen = 1;
			document.getElementById("login_link").style.backgroundImage = "Url(bilder/layout/login_pfeil_up.gif)";
		}
	}else{
		isPosition -= 4;
		if(isPosition >= -87){
			window.setTimeout('switchLogin()',30);
		}else{
			flagLoginOpen = 0;
			document.getElementById("login_link").style.backgroundImage = "Url(bilder/layout/login_pfeil_down.gif)";
		}
	}
	
	document.body.style.marginTop = isPosition+"px";
}