function displayLogo() 
{
 // selection of logo images:
 // logo.rotate.0.jpg to:
 // logo.rotate.MAX.jpg
 // all 500 pixels x 140 pixels

 	var MAX = 10;		

// random 0 to MAX:
 var i = Math.floor ( Math.random() * (MAX+1) );		 

// fix on one image:
//	i = 10;

 var image = "http://HumphrysFamilyTree.com/Icons/logo.rotate." + i + ".jpg";

// debug with local file:
// 	image = "../Icons/logo.rotate.1.jpg";


 // re-size them:
 var w = 0.25 * screen.width;
 w = Math.floor(w);		// integer, not float

 var h = ( w / 500 ) * 140;
 h = Math.floor(h);


 document.write( "<A HREF=http://HumphrysFamilyTree.com/>" );
 document.write( "<img border=0 width=" + w + " height=" + h + " src=" + image + "></A>" );
}