Fiboncci series
<html> <head> <title>Fiboncci series </title> </head> <body bgcolor=brown text=yellow> <h2 align=center> <script language=javascript> var no1,no2,no3,i no1=0 no2=1 document.write(no1) document.write("<br>") document.write(no2) document.write("<br>") i=3 while (i<=20) { no3=no1+no2 document.write(no3) no1=no2 no2=no3 i++ document.write("<br>") } </script> </h2> </body> </html>