Html 5 will use a media element. Flash will use an object element.
pick a starting element and do a recursive loop until you find the answer.
This is the recursive function that will check the tag name of each element.
function checkForPlayer(el)
{
var result = null;
if(el.tagName)
if(el.tagName.toLowerCase() == 'object')
result = 'flash';
else if(el.tagName.toLowerCase() == 'media')
result = 'html5';
if(result != null)
return result;
for(var i = 0; i < el.childNodes.length; i++)
{
result = checkForPlayer(el.childNodes[i]);
if(result != null)
return result;
}
}
This is how to use it.
var myElement = document.getElementById('myElementId');
var result = checkForPlayer(myElement);
var resultText = result == null ? 'none' : result;
alert(resultText);