On Nov 19, 6:12*am, wolverine <kiran.ha...@gmail.comwrote:
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Hi All,
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In Mozilla Firefox, *to onblur and onfocus event of each and every
html element, the browser itself will attach a native event handler. I
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Do tell.
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mean if you type, 'javascript:alert(window.blur)' in the address bar
of Firefox browser, you can see a 'function ....' . That is a Firefox
browser defined handler.
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Is it? Not unexpectedly, IE shows the same thing.
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Now assume that web developer also attach event handlers to 'onblur'
events eg: 'window.blur=f3()'
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That is not an event handler (or even a known property) and unless f3
is a factory function, the right side is wrong too. Perhaps you meant
"window.onblur = f3;"?
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>
Is there any way to check if the event handler is a browser attached
handler OR a web developer attached event handler ?
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In other words, you want to know if a property (e.g. onblur) of an
element has been set by another script? There is no standard way to
do this. If you need to support just a few browsers and they all
return the same toString results, then you could look for the string
you saw in the alert. Better yet, figure out a way to factor this
decision out of the system.
