var revert = new Array();
var inames = new Array('aboutus','programs','faqs','media','contactus');

// Preload
if (document.images) {
	var flipped = new Array();
	for(i=0; i< inames.length; i++) {
		flipped[i] = new Image();
		flipped[i].src = "img/"+inames[i]+"_on.gif";
	}
}

function over(num) {
	if(document.images) {
		revert[num] = document.images[inames[num]].src;
		document.images[inames[num]].src = flipped[num].src;
	}
}
function out(num) {
	if(document.images) document.images[inames[num]].src = revert[num];
}