function random_aviation_banner_img()
{

	// specify random image names & alt text
	// add more lines as needed

	var myimages=new Array();		var myalt=new Array();

	myimages[0]="img/banner_cub.jpg";	myalt[0]="Piper Cub";
	myimages[1]="img/banner_dc3.jpg";	myalt[1]="DC3";
	myimages[2]="img/banner_f4.jpg";	myalt[2]="F4 Phantom";
	myimages[3]="img/banner_xs1.jpg";	myalt[3]="XS1";

	//generate random number

	var ry=Math.floor(Math.random()*myimages.length)

	// display image

	document.writeln('<img src="'+myimages[ry]+'" WIDTH=560 HEIGHT=170 border=0 ALT="'+myalt[ry]+' by Rob Bolster">');
}

random_aviation_banner_img()