title: How to create conditional hyperlink in HTML
body: <p>I want to link my page with another page on condition. </p>
  
  <p>Suppose I have 3 HTML pages, namely <strong>1.html</strong>, <strong>2.html</strong> and <strong>3.html</strong>. What I want is that if <strong>1.html</strong> is loaded then load page <strong>2.html</strong>; If <strong>1.html</strong> is not loaded then load <strong>3.html</strong>.</p>
  
  <p>please help.</p>