<!-- JavaScript:Basics plus code snippet 4. --> <!-- An 'if else' conditional with 'or' comparison --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <!-- Code source: http://www.justfigures.co.uk/ --> <!-- A resource for web developers using XHTML, CSS, JavaScript, PHP --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>View code snippet page</title> </head> <body> <script language="JavaScript" type="text/javascript"> //<![CDATA[ var age; age = window.prompt('Please enter your age', ''); age = parseFloat(age); // use of 'OR' comparison || if ((age <18)||(age >=50)) // the following line executes if the 'if' condition is true { document.write('The price of your ticket is a concessionary £5') } else // the following line executes if the 'if' condition is false { document.write('The price of your ticket is £10') } //]]> </script> </body> </html>