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<html><head><script>function whichElement(e) { let targ, tname, e; if (!e) { e = window.event; } if (e.target) { targ=e.target; } else if (e.srcElement) { targ=e.srcElement; } tname = targ.tagName; alert("You clicked on a " + tname + " element.");}</script></head><body onmousedown="whichElement(event)"><h1>JavaScript HTML Events</h1><h2>The onmousedown Attribute</h2><p>Click somewhere in the document. An alert box will alert the name of the element you clicked on.</p><h3>This is a heading</h3><img border="0" src="smiley.gif" alt="Smiley" width="32" height="32"><p>This is a paragraph.</p></body></html>