if (document.images) {

	var youtube1n = new Image();
	youtube1n.src = "/wp-content/themes/willms3/images/youtube1.jpg";
	var youtube1a = new Image();
	youtube1a.src = "/wp-content/themes/willms3/images/youtube1_on.jpg";

	var youtube2n = new Image();
	youtube2n.src = "/wp-content/themes/willms3/images/youtube2.jpg";
	var youtube2a = new Image();
	youtube2a.src = "/wp-content/themes/willms3/images/youtube2_on.jpg";

	var youtube3n = new Image();
	youtube3n.src = "/wp-content/themes/willms3/images/youtube3.jpg";
	var youtube3a = new Image();
	youtube3a.src = "/wp-content/themes/willms3/images/youtube3_on.jpg";

	var youtube4n = new Image();
	youtube4n.src = "/wp-content/themes/willms3/images/youtube4.jpg";
	var youtube4a = new Image();
	youtube4a.src = "/wp-content/themes/willms3/images/youtube4_on.jpg";

}

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

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