window.onload = startAnim;

var navDiv = null;
var aktOpac = -200;
var dOpac = 5;
var dt =30;

function startAnim(){
	navDiv = document.getElementById("startNavi");
	if(navDiv){
		setOpac(navDiv, 0);
		doStep();
	}	
}

function doStep(){
	aktOpac+= dOpac;
	if(aktOpac > 0) setOpac(navDiv, aktOpac);
	if(aktOpac < 100) window.setTimeout("doStep()", dt);
	
}

function setOpac(elem, val){
	if(document.all){
		elem.style.filter="Alpha(opacity="+val+")";
	}else{
		if(navigator.appName.indexOf('Opera') > -1){
			elem.style.opacity = val/100;
		}else{
			elem.style.MozOpacity = val/100;
		}		
	}
}