if (document.images) {
	flash_out = new Image();
	flash_out.src = "images/flash_out.jpg";
	flash_in = new Image();
	flash_in.src = "images/flash_in.jpg";
	html_out = new Image();
	html_out.src = "images/html_out.jpg";
	html_in = new Image();
	html_in.src = "images/html_in.jpg";
	}

function rolloverOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "_in.src");
	}
}

function rolloverOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "_out.src");
	}
}