Dynamically created anchor, javascript return false in onclick: javascript, anchor, onclick, return, false

Dynamically created anchor, javascript return false in onclick

Where I might normally do in HTML:

<a href='...' onclick='alert(123);return false;'>

I am trying to replicate that with dynamically created tags. I want the href to be valid, but the onclick to return false so that it is executed and the browser does NOT navigate to the href'ed page. I can't manage that though. This creates the link just fine, and opens the window just fine, but it also navigates away from the original page which I want to avoid, when the window is opened.

<!doctype html public "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Untitled Page</title>
<style type="text/css">
</style>
<script type="text/javascript">
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

//add event function from http://www.dynarch.com/projects/calendar/
function addAnEvent(aEl, aEvName, aFunc) {
      if (aEl.attachEvent) { // IE
            aEl.attachEvent("on" + aEvName, aFunc);
      } else if (aEl.addEventListener) { // Gecko / W3C
            aEl.addEventListener(aEvName, aFunc, true);
      } else {
            aEl["on" + aEvName] = aFunc;
      }
}

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function elFromEvent(aEvent) {
      var el=null;
      if (aEvent.target) el=aEvent.target;
      if ('undefined'!=typeof event && event.srcElement) el=event.srcElement;
      return el;
}

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function showImage(aEvent) {
      var el=elFromEvent(aEvent);
      window.open(el.href);

      return false;
}

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

//onload handler
addAnEvent(window, 'load', function() {
      var a=document.createElement('a');
      a.href='http://www.google.com/images/logo_sm.gif';
      addAnEvent(a, 'click', showImage);
      a.appendChild(document.createTextNode('google'));
      document.body.appendChild(a);
});

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
</script>
</head>
<body>

</body>
</html>

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Dynamically created anchor, javascript return false in onclick

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anchor

onclick

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JavaScript

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