function initPage()
{
	var navRoot = document.getElementById("menu");
	var fly = document.getElementById("flight");
	var flyimg = document.getElementById("flightimg");
	var lis = navRoot.getElementsByTagName("a");
		for (var i=0; i<lis.length; i++)
		{		
			var tmpimg = new Image();
			tmpimg.src = "images/" + lis[i].id + "-img.png";		
			lis[i].onmouseover = function()
			{
				//fly.className = "visible";
				flyimg.src = "images/" + this.id + "-img.png";
			}
			lis[i].onmouseout = function()
			{
				//fly.className = "";
				flyimg.src = "images/menu-city-img.png";
			}
		}
	preload();
}

function _uptext()
{
	var text = document.getElementById("text-container");
	if (text.offsetTop < 0)
	text.style.top = text.offsetTop + 14 + "px"
}
function _downtext()
{
	var text = document.getElementById("text-container");
	var main = document.getElementById("text");
	var height = main.offsetHeight;
	var top = text.offsetHeight - height;
	if (Math.abs(text.offsetTop) < top )
	text.style.top = text.offsetTop - 14 + "px";
}


if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);