How To Use External JavaScript In JavaScript

  1. <html>  
  2.   
  3. <head>  
  4.     <script script="text/javascript" src="myjs.js">  
  5.     </script>  
  6. </head>  
  7.   
  8. <body>  
  9.     <form name='sample'> <input type="button" onclick="popup()" value="Click Me!"> </form>  
  10. </body>  
  11.   
  12. </html>