function date (form){
var Serial=form.inputbox.value;
if(Serial<=0)
	{Message="That was an invalid serial number";Year="";}
else{Message="Your Winchester 1886 was manufactured in ";
if(Serial<=3211)
	{Year=1886;}
else{
if(Serial<=14728)
	{Year=1887;}
else{
if(Serial<=28577)
	{Year=1888;}
else{
if(Serial<=38401)
	{Year=1889;}
else{
if(Serial<=49723)
	{Year=1890;}
else{
if(Serial<=63601)
	{Year=1891;}
else{
if(Serial<=73816)
	{Year=1892;}
else{
if(Serial<=83261)
	{Year=1893;}
else{
if(Serial<=94543)
	{Year=1894;}
else{
if(Serial<=103708)
	{Year=1895;}
else{
if(Serial<=109670)
	{Year=1896;}
else{
if(Serial<=113997)
	{Year=1897;}
else{
if(Serial<=119192)
	{Year=1898;}
else{
if(Serial<=120571)
	{Year=1899;}
else{
if(Serial<=122834)
	{Year=1900;}
else{
if(Serial<=125630)
	{Year=1901;}
else{
if(Serial<=128942)
	{Year=1902;}
else{
if(Serial<=132213)
	{Year=1903;}
else{
if(Serial<=135524)
	{Year=1904;}
else{
if(Serial<=138838)
	{Year=1905;}
else{
if(Serial<=142249)
	{Year=1906;}
else{
if(Serial<=145119)
	{Year=1907;}
else{
if(Serial<=147322)
	{Year=1908;}
else{
if(Serial<=148237)
	{Year=1909;}
else{
if(Serial<=150129)
	{Year=1910;}
else{
if(Serial<=151622)
	{Year=1911;}
else{
if(Serial<=152943)
	{Year=1912;}
else{
if(Serial<=152947)
	{Year=1913;}
else{
if(Serial<=153859)
	{Year=1914;}
else{
if(Serial<=154452)
	{Year=1915;}
else{
if(Serial<=154979)
	{Year=1916;}
else{
if(Serial<=155387)
	{Year=1917;}
else{
if(Serial<=156219)
	{Year=1918;}
else{
if(Serial<=156930)
	{Year=1919;}
else{
if(Serial<=158716)
	{Year=1920;}
else{
if(Serial<=159108)
	{Year=1921;}
else{
if(Serial<=159337)
	{Year=1922;}
else{Message="That was an invalid serial number";Year="";}
}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
alert (Message + Year+".");
}