function addevent(obj, ev, func) {
	if (obj.addEventListener) {
		obj.addEventListener(ev, func, false);
	}
	else if (obj.attachEvent) { 
		obj.attachEvent('on' + ev, func);
	} else {
		alert('fout');
	}
}

// returns true if using FF and there is NO vertical scrollbar
function isFirefoxScrollBarInvisible() {
	if (navigator.userAgent.indexOf("MSIE") > 0)
		return false;

	// scrollHeight only appears to work in FF, but that is where we are having issues
	if (document.documentElement.scrollHeight <= window.innerHeight) // too big for screen
		return true;


	document.getElementById("website").style.paddingLeft = '17px';
}

//addevent(window, "load", function () { isFirefoxScrollBarInvisible(); });