NN = document.layers; 
IE = document.all; 
isMac = (navigator.appVersion.indexOf("Mac") !=-1); 
isWin = (navigator.appVersion.indexOf("Win")!=-1); 
isLin = (navigator.appVersion.indexOf("Linux") !=-1);
isUnix = (navigator.appVersion.indexOf("X11")!=-1);

img1=new Image
img1.src="images/spacer.gif"
img2=new Image
img2.src="images/fundraising_graphic_over.gif"
img3=new Image
img3.src="images/grantmaking_graphic_over.gif"
img4=new Image
img4.src="images/information_graphic_over.gif"
img5=new Image
img5.src="images/fundraising_graphic.jpg"
img6=new Image
img6.src="images/grantmaking_graphic.jpg"
img7=new Image
img7.src="images/information_graphic.jpg"

function initImage1() {
	document.getElementById('fundraising').style.visibility = "visible";
}

function initImage2() {
	document.getElementById('grantmaking').style.visibility = "visible";
}

function initImage3() {
	document.getElementById('information').style.visibility = "visible";
}

function endImage1() {
	document.getElementById('fundraising').style.visibility = "hidden";
}

function endImage2() {
	document.getElementById('grantmaking').style.visibility = "hidden";
}

function endImage3() {
	document.getElementById('information').style.visibility = "hidden";
}

function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			setOpacity(obj, opacity);
			opacity += 10;
			window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
		}
	}
}

function fadeOut(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity >= 0) {
			setOpacity(obj, opacity);
			opacity -= 10;
			window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 100);
		}
	}
}

function setOpacity(obj, opacity) {
	opacity = (opacity == 100)?99.999:opacity;
	// IE/Win
	obj.style.filter = "alpha(opacity:"+opacity+")";
	// Safari<1.2, Konqueror
	obj.style.KHTMLOpacity = opacity/100;
	// Older Mozilla and Firefox
	obj.style.MozOpacity = opacity/100;
	// Safari 1.2, newer Firefox and Mozilla, CSS3
	obj.style.opacity = opacity/100;
}