if ( visibility < 3  					) 			POOR="checked";
 if (              3 <= visibility &&
                        visibility < 9 ) 			GOOD="checked";
 if ( 								  9 <= visibility )EXCELLENT="checked"; 
document.write(
"<td valign=top><center><a href=Visibility.html>			"+
"visibility</a></center><small>							    "+
"<nobr><INPUT type=radio name=visibility value=poor "     + POOR +     " >poor</nobr>     "+
"<nobr><INPUT type=radio name=visibility value=good "     + GOOD +     " >good</nobr>     "+
"<nobr><INPUT type=radio name=visibility value=excellent "+ EXCELLENT +" >excellent</nobr>"+
"<nobr> at&nbsp;"+ visibility +"&nbsp;miles </nobr> "+
"<input type=hidden name=visibilityDistance value="+ visibility +"> "	);