function date (form){
var serial=form.inputbox.value;
if(serial<=0)
	{message="That was an invalid serial number";year="";}
else{
message="Your Winchester Model 1905 was manufactured in ";
if(serial<=5659)
	{year=1905;}
else{
if(serial<=15288)
	{year=1906;}
else{
if(serial<=19194)
	{year=1907;}
else{
if(serial<=20385)
	{year=1908;}
else{
if(serial<=21280)
	{year=1909;}
else{
if(serial<=22423)
	{year=1910;}
else{
if(serial<=23503)
	{year=1911;}
else{
if(serial<=24602)
	{year=1912;}
else{
if(serial<=25559)
	{year=1913;}
else{
if(serial<=26110)
	{year=1914;}
else{
if(serial<=26561)
	{year=1915;}
else{
if(serial<=26910)
	{year=1916;}
else{
if(serial<=27297)
	{year=1917;}
else{
if(serial<=27585)
	{year=1918;}
else{
if(serial<=28287)
	{year=1919;}
else{
if(serial<=29113)
	{year=1920;}
else{message="That was an invalid serial number";year="";}
}}}}}}}}}}}}}}}}
alert (message + year +".");
}