Trigger a function from pop up window and arguments question...

Sally B. · Aug 14, 2006

Hi,

I have a main page that opens a pop up window when the user clicks a
link. The pop up window is a menu and when the user clicks the item, it
populates a form input element on the 'parent' window.

My question is: this new populated form element is the value that I use
to change a style.

onchange does not watch this form element because of getelementbyid, so
it doesn't trigger the function needed to change the style. onchange
works fine if I just manually input a value into the text box.

Any other way to fire the function off when the user picks their
selection from the pop-up window? I was thinking I could use
window.opener.function()? But how do I pass the form from the parent
window? From the pop up window, I don't use this.form, what do I
use?something like window.opener.form[0] ?

thks

marss · Aug 14, 2006

Sally B. Ð½Ð°Ð¿Ð¸ÑÐ°Ð²:

onchange does not watch this form element because of getelementbyid, so
it doesn't trigger the function needed to change the style. onchange
works fine if I just manually input a value into the text box.

Input value into the text box by code and then explicitly call function
which you use as onchange event handler.

window? From the pop up window, I don't use this.form, what do I
use?something like window.opener.form[0] ?

opener is ahother window and it has no "form" property, use
opener.document.form[0].

But better you can define a function in the main window and call it
from a popup window.
e.g.

main window

<html>
<body>
<script type=text/javascript>
function foo(val){
document.getElementById("tb1").value = val;
tb1Changed(val);
}
function tb1Changed(val){
alert("textbox value: " + val);
}
</script>
<input type=button
onclick="window.open('2.htm','popup','height=300,width=300');"
value="Open popup window">
<input type="text" id="tb1" onchange="tb1Changed(this.value)">
</body>
</html>

popup window

<html>
<body>
<input type=button onclick="opener.foo('test');" value="Change main
window">
</body>
</html>

Sally B. · Aug 15, 2006

Thanks for the response. I will try this out...

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Trigger a function from pop up window and arguments question...

Sally B.

marss

Sally B.

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