function setOpacity(element_id, opacity){
	var element = document.getElementById(element_id).style;
	element.opacity = (opacity / 100);
	element.MozOpacity = (opacity / 100);
	element.KhtmlOpacity = (opacity / 100);
	element.filter = "alpha(opacity="+opacity+")";
}

function setDisplay(element_id, display){
	var element = document.getElementById(element_id).style;
	element.display = display;
}

var opacity = 0;

function fadeIn(id){
	opacity += 5;
	setOpacity(id, opacity);
	if (opacity < 100){
		setTimeout("fadeIn('"+id+"')", 10);
	}
}