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<html><head><script>function preferedBrowser() { prefer = document.forms[0].browsers.value; alert("You prefer browsing internet with " + prefer);}</script></head><body><h1>JavaScript HTML Events</h1><h2>The onchange Attribute</h2><form>Choose which browser you prefer: <select id="browsers" onchange="preferedBrowser()"> <option value="Chrome">Chrome</option> <option value="Internet Explorer">Internet Explorer</option> <option value="Firefox">Firefox</option> </select></form></body></html>