We can create a <u> element via the document.createElement()
method:
var x = document.createElement("U");
Click the button to create a U element with some text.
<!DOCTYPE html> <html> <body> <button onclick="myFunction()">Test</button> <script> function myFunction() {/* w w w .j a v a 2s . co m*/ var x = document.createElement("U"); var t = document.createTextNode("This text is underlined"); x.appendChild(t); document.body.appendChild(x); } </script> </body> </html>