var objBeta;
var objDelta;
var timer;
var timer2;

window.onload = init;

function init(){
	if(/safari/i.test(navigator.userAgent)){ //safari, google chrome
	}else if(/opera/i.test(navigator.userAgent)){ //opera
	}else{
		init2();
	}
}
function init2(){
	objBeta = document.getElementById("beta");
	objDelta = document.getElementById("delta");
	objBeta.onmouseover = displayContainer;
	objBeta.onmouseout = hideContainer;
	window.onscroll = displayContainer;
	objBeta.style.height = objBeta.offsetHeight;
}

function displayContainer(){
	clearTimeout(timer);
	if(objDelta.style.display == 'none'){
		objDelta.style.display = "block";
	}
}

function hideContainer(){
	timer = setTimeout("hideContainer2()",50);
}

function hideContainer2(){
	objDelta.style.display = "none";
	hint();
}

function hint(){
	fixed.style.display="block";
	timer2 = setTimeout("hideHint()",2000);
}

function hideHint(){
	fixed.style.display="none";
	clearTimeout(timer2);
}