Get last active element..

rytmeboksen

Hi,

I have three textareas and four buttons within a form. The buttons has
often used text as value. When I press a button I whant the assigned
text to be added in whatever textareas im currently in (the one with
cursor blinking). Is this possible with Javascript?

--
Tommy Myrvoll

Nov 2 '05 #1

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11392

Ivo

<ry*********@gmail.com> wrote

I have three textareas and four buttons within a form. The buttons has
often used text as value. When I press a button I whant the assigned
text to be added in whatever textareas im currently in (the one with
cursor blinking). Is this possible with Javascript?

var lastarea, // global variable to remember current element
a = document.getElementsByTagName( 'textarea' ), i = a.length;
while( i-- ) {
a[i].onfocus = setlast; // initialize
}

function setlast( e ) {
e = e || window.event || {};
var o = e.srcElement || e.target;
lastarea = o;
}

Now when the button is pressed, you simply update "lastarea.value" with
whatever the button is supposed to add.
hth
ivo
http://4umi.com/web/javascript/

Nov 2 '05 #2

McKirahan

<ry*********@gmail.com> wrote in message
news:11*********************@g44g2000cwa.googlegro ups.com...

Hi,

I have three textareas and four buttons within a form. The buttons has
often used text as value. When I press a button I whant the assigned
text to be added in whatever textareas im currently in (the one with
cursor blinking). Is this possible with Javascript?

--
Tommy Myrvoll

Will this help?

<html>
<head>
<title>often.htm</title>
<script type="text/javascript">
var what;
function fokus(that) {
what = that;
}
function often(that) {
if (what == null) return;
what.value = that.value;
}
</script>
</head>
<body>
<form>
<input type="reset" value="Reset">
<br><textarea name="a1" id="a1" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><textarea name="a2" id="a2" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><textarea name="a3" id="a3" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><input type="button" value="often used text 1"
onclick="often(this)">
<br><input type="button" value="often used text 2"
onclick="often(this)">
<br><input type="button" value="often used text 3"
onclick="often(this)">
<br><input type="button" value="often used text 4"
onclick="often(this)">
</form>
</body>
</html>

Nov 2 '05 #3

McKirahan

"McKirahan" <Ne**@McKirahan.com> wrote in message
news:ZK********************@comcast.com...

<ry*********@gmail.com> wrote in message
news:11*********************@g44g2000cwa.googlegro ups.com...
Hi,

I have three textareas and four buttons within a form. The buttons has
often used text as value. When I press a button I whant the assigned
text to be added in whatever textareas im currently in (the one with
cursor blinking). Is this possible with Javascript?

--
Tommy Myrvoll

Will this help?

<html>
<head>
<title>often.htm</title>
<script type="text/javascript">
var what;
function fokus(that) {
what = that;
}
function often(that) {
if (what == null) return;
what.value = that.value;
}
</script>
</head>
<body>
<form>
<input type="reset" value="Reset">
<br><textarea name="a1" id="a1" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><textarea name="a2" id="a2" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><textarea name="a3" id="a3" cols="40" rows="3"
onfocus="fokus(this)"></textarea>
<br><input type="button" value="often used text 1"
onclick="often(this)">
<br><input type="button" value="often used text 2"
onclick="often(this)">
<br><input type="button" value="often used text 3"
onclick="often(this)">
<br><input type="button" value="often used text 4"
onclick="often(this)">
</form>
</body>
</html>

Change

what.value = that.value;

to

what.value += that.value;

to append the value to the textareas.

Note the value is appended with adding a space
or a line feed. Do you need either?

Nov 2 '05 #4

Richard Cornford

Ivo wrote:
<snip>

var lastarea, // global variable to remember current element
a = document.getElementsByTagName( 'textarea' ), i = a.length;
while( i-- ) {
a[i].onfocus = setlast; // initialize
}

function setlast( e ) {
e = e || window.event || {};
var o = e.srcElement || e.target;
lastarea = o;
}

<snip>

Given that you are assigning - setlast - to the - onfocus - property of
the textarea, so it will be called as a method of the textarea element:-

function setlast(){
lastarea = this;
}

- should be sufficient.

Richard.

Nov 2 '05 #5

rytmeboksen

McKirahan wrote:
....

<script type="text/javascript">
var what;
function fokus(that) {
what = that;
}
function often(that) {
if (what == null) return;
what.value = that.value;
}
</script>

....

Just what I needed. Thanks a lot

--
Tommy

Nov 2 '05 #6

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