function tagline () {
		var num = Math.round(Math.random()*2);

		if (num == 0) {
	      return('images/header-table.png');
		}
		if (num == 1) {
		  return('images/header-table2.png');
		}
		if (num == 2) {
		  return('images/header-table3.png');
		}
	
}
function taglinebanner () {
		var num = Math.round(Math.random()*10);

		if (num == 0) {
	      return('images/img-banner1.jpg');
		}
		if (num == 1) {
		  return('images/img-banner2.jpg');
		}
		if (num == 2) {
	      return('images/img-banner3.jpg');
		}
		if (num == 3) {
		  return('images/img-banner4.jpg');
		}
		if (num == 4) {
		  return('images/img-banner5.jpg');
		}
		if (num == 5) {
	      return('images/img-banner6.jpg');
		}
		if (num == 6) {
		  return('images/img-banner7.jpg');
		}
		if (num == 7) {
		  return('images/img-banner8.jpg');
		}
		if (num == 8) {
		  return('images/img-banner9.jpg');
		}
		if (num == 9) {
		  return('images/img-banner10.jpg');
		}
		if (num == 10) {
		  return('images/img-banner11.jpg');
		}
}
function taglinebannerlibrary () {
		var num = Math.round(Math.random()*5);

		if (num == 0) {
	      return('images/img-banner-library1.jpg');
		}
		if (num == 1) {
		  return('images/img-banner-library2.jpg');
		}
		if (num == 2) {
	      return('images/img-banner-library3.jpg');
		}
		if (num == 3) {
		  return('images/img-banner-library4.jpg');
		}
		if (num == 4) {
	      return('images/img-banner-library5.jpg');
		}
		if (num == 5) {
	      return('images/img-banner-library6.jpg');
		}
}