/**
 * Creates the html for an ad to show on the page.
 */
function getAd() {
	var numimgs = 22;
	var now = new Date();
	var imgsrc="";
	var imgurl="http://www.mozilla.org/";
	var imgtitle="Mozilla Banner: This code could get into the right hands.";
	var imgalt="Mozilla Banner: This code could get into the right hands.";
	x = Math.ceil(numimgs * Math.random());
	if(x == 1) {
		imgsrc="mozilla-domination-ani.gif";
	}
	if(x == 2) {
		imgsrc="mozilla-kill-ani.gif";
	}
	if(x == 3) {
		imgsrc="mozilla-lizard-ani.gif";
	}
	if(x == 4) {
		imgsrc="mozilla-monopoly-ani.gif";
	}
	if(x == 5) {
		imgsrc="mozilla-ofbyfor-ani.gif";
	}
	if(x == 6) {
		imgsrc="mozilla-political-ani.gif";
	}
	if(x == 7) {
		imgsrc="mozilla-theman-ani.gif";
	}
	if(x == 8) {
		imgsrc="mozilla-ulterior-ani.gif";
	}
	if(x == 9) {
		imgsrc="mozilla-undermining-ani.gif";
	}
	if(x == 10) {
		imgsrc="mozilla2_04.gif";
	}
	if(x==11) {
		imgsrc="ubuntu-banner-normal.png";
		imgurl="http://www.ubuntulinux.org/";
		imgtitle="Better than Windows™? Hell yeah!";
		imgalt="Free, free and better.";
	}
	if(x>=12 && x<=14) {
		imgsrc="ec_banner_wide.gif";
		imgurl="http://www.earthcomber.com/";
		imgtitle="The New Way To Search Locally";
		imgalt="The New Way To Search Locally";
	}
	if(x==15) {
		imgsrc="http://sfx-images.mozilla.org/affiliates/Buttons/firefox3/468x60.png";
		imgurl="http://www.mozilla.com/firefox?from=sfx&uid=0&t=309";
		imgtitle="Spreadfirefox Affiliate Button";
		imgalt="Spreadfirefox Affiliate Button";
	}
	if(x==16) {
		imgsrc="http://www.fireupthefox.com/imgs/bnb/468x60_resources.png";
		imgurl="http://www.fireupthefox.com/";
		imgtitle="Fire up the Fox!";
		imgalt="Fire up the Fox!";
	}
	if(x==16) {
		imgsrc="cloudsfirefox.png";
		imgurl="http://www.firefox.com/";
		imgtitle="Firefox! Take Back The Web!";
		imgalt="Firefox! Take Back The Web!";
	}
	if(x==17) {
		imgsrc="fireryfirefox.png";
		imgurl="http://www.firefox.com/";
		imgtitle="Firefox! Take Back The Web!";
		imgalt="Firefox! Take Back The Web!";
	}
	if(x==18) {
		imgsrc="safer.gif";
		imgurl="http://www.firefox.com/";
		imgtitle="Firefox! Take Back The Web!";
		imgalt="Firefox! Take Back The Web!";
	}
	if(x==19) {
		imgsrc="takebackani.gif";
		imgurl="http://www.firefox.com/";
		imgtitle="Firefox! Take Back The Web!";
		imgalt="Firefox! Take Back The Web!";
	}
	if(x==20) {
		imgsrc="firefoxandubuntu.gif";
		imgurl="http://www.firefox.com/";
		imgtitle="Ubuntu Rocks!";
		imgalt="Ubuntu Rocks!";
	}
	if(x==21) {
		imgsrc="ooorgandubuntu.gif";
		imgurl="http://www.firefox.com/";
		imgtitle="Ubuntu Rocks!";
		imgalt="Ubuntu Rocks!";
	}
	if(x==22) {
		imgsrc="rhythmboxandubuntu.gif";
		imgurl="http://www.firefox.com/";
		imgtitle="Ubuntu Rocks!";
		imgalt="Ubuntu Rocks!";
	}
	if(x>=27) {
		imgsrc="patfitzgeralcoy.png";
		imgurl="http://www.coachoftheyear.com/";
		imgtitle="Vote for Pat Fitzgerald for Coach of the Year.";
		imgalt="Vote for Pat Fitzgerald for Coach of the Year";
	}
	return '<a href="' + imgurl + '"><img src="' + imgsrc + '" alt="' + imgalt + '" title="' + imgtitle + '" style="border:0;" /></a>';
}