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<html><body><iframe id="myFrame" src="/default.asp" name="iframe_a"></iframe><p>Click the button to change the name of the iframe.</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { document.getElementById("myFrame").name = "newIframeName"; document.getElementById("demo").innerHTML = "The name of the iframe was changed from 'iframe_a' to 'newIframeName'.";}</script></body></html>