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w3ii.com
<!DOCTYPE html> <html> <body> <a id="myAnchor">A Link: Go to w3schools.com</a> <p>Click the button to set the href attribute with a value of "www.w3ii.com" of the a element above.</p> <button onclick="myFunction()">Try it</button> <p><strong>Note:</strong> Internet Explorer 8 and earlier does not support the setAttribute method.</p> <script> function myFunction() { document.getElementById("myAnchor").setAttribute("href", "http://www.w3ii.com"); } </script> </body> </html>