// Leister javascript object
function Leister() {}

Leister.prototype.debug = function(sDebug) 
{
	if(sDebug) 
	{
		alert(sDebug);
	}
}

Leister.prototype.checkHeight = function() 
{
	var sRef = document.getElementById('top-nav');
	if(sRef)
	{
		var sTarget = document.getElementById('content');
		var iHeight = sRef.offsetHeight;
		sTarget.style.top = iHeight+"px";
	}
}

function addEvent(elm, evType, fn, useCapture) 
{
	// cross-browser event handling for IE5+, NS6 and Mozilla
	// By Scott Andrew
	if (elm.addEventListener) 
	{
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} 
	else if (elm.attachEvent) 
	{
		var r = elm.attachEvent('on' + evType, fn);
		return r;
	} 
	else 
	{
		elm['on' + evType] = fn;
	}
}

var oLeister = new Leister();

addEvent(window, 'load', oLeister.checkHeight, false);