The onKeyUp event is working in IE(7) and not in Firefox(4.0.1).
I have a textfield with attribute onclick="eventName();"
in the Javascript function eventName(evt). I do not have an event data, the event data is not sent by Fi开发者_如何学JAVArefox. In IE on the other hand window.event IS filled so here it works...
Both IE and Firefox reach the function just fine. Only problem is that I need the event data there. Can anyone direct me towards a solution for this annoying problem?
Example page:
<html>
<head>
<script type="text/javascript">
function upperCase(evt) {
if (evt) {
var target = evt.target;
target.value = target.value.toUpperCase();
} else if (window.event) {
var target = window.event.srcElement;
target.value = target.value.toUpperCase();
} else alert('No event information');
}
</script>
</head>
<body>
<span>Enter your name: </span>
<input type="text" id="fname" onkeyup="upperCase()" />
</body>
</html>
IE handles events with a global. Everything else the event passed as the first argument to the function.
onkeyup="upperCase()"
You don't do anything with it in there. I'm not even sure you can — I haven't touched an intrinsic event attribute for anything but the most trivial toy in years.
Given
document.getElementById('fname').keyup = upperCase;
(or, better, using attachEvent / addEvent, the evt variable will be populated.)
To make this work in all browsers, pass the event to the function you're calling:
<input type="text" id="fname" onkeyup="upperCase(event)">
function upperCase(evt) {
if (evt) {
var target = evt.target;
target.value = target.value.toUpperCase();
} else if (window.event) {
var target = window.event.srcElement;
target.value = target.value.toUpperCase();
} else alert('No event information');
}<input type="text" id="fname" onkeyup="upperCase(event)">In some browsers such as IE, this works because event resolves to window.event, which always refers to the current event being handled. In other browsers (such as Firefox), this works because event is a variable that's in scope for the event handler. You can imagine the contents of the onkeyup attribute as being the body of a function that looks like
function(event) {
// Attribute value here
}
You forgot to actually pass the event as parameter, should be:
<input type="text" id="fname" onkeyup="upperCase(event)" />
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