Attaching javascript event to a built in advance html file...

zzzbla

Hi,

I need to attach a javascript function I wrote to the onChange event of
a <select> tag. However, I'm using a 3rd party tool that creates the
html files - it only lets me add bits of html to it, I can't touch the
elements it produces, so I can't just add an onChange="myfunction"
attribute to that <select> tag. I can't change the onload attribute of
the <body> tag.

How can I run code that attached my function to that event?

Thanks in advance,
R. Green

Apr 24 '06 #1

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Randy Webb

zz****@gmail.com said the following on 4/24/2006 1:21 PM:

Hi,

I need to attach a javascript function I wrote to the onChange event of
a <select> tag. However, I'm using a 3rd party tool that creates the
html files - it only lets me add bits of html to it, I can't touch the
elements it produces, so I can't just add an onChange="myfunction"
attribute to that <select> tag. I can't change the onload attribute of
the <body> tag.

How can I run code that attached my function to that event?

Does your select have a name or id attribute?

If so, simply add an onchange event to it:

document.forms['formID'].elements['selectName'].onchange=functionToExecuteOnChange;

--
Randy
comp.lang.javascript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

Apr 24 '06 #2

zzzbla

hi,

what if there are already functions that handle the event (either by
<select onchange="functionname">) or the equivalent
....elements["elementname"].onchange? how can i make sure that it's my
function that runs and not the others?

Randy Webb wrote:

zz****@gmail.com said the following on 4/24/2006 1:21 PM:
Hi,

I need to attach a javascript function I wrote to the onChange event of
a <select> tag. However, I'm using a 3rd party tool that creates the
html files - it only lets me add bits of html to it, I can't touch the
elements it produces, so I can't just add an onChange="myfunction"
attribute to that <select> tag. I can't change the onload attribute of
the <body> tag.

How can I run code that attached my function to that event?

Does your select have a name or id attribute?

If so, simply add an onchange event to it:

document.forms['formID'].elements['selectName'].onchange=functionToExecuteOnChange;

--
Randy
comp.lang.javascript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

Apr 27 '06 #3

Randy Webb

zz****@gmail.com said the following on 4/27/2006 3:10 AM:

Answer:It destroys the order of the conversation
Question: Why?
Answer: Top-Posting.
Question: Whats the most annoying thing on Usenet?

hi,

what if there are already functions that handle the event (either by
<select onchange="functionname">) or the equivalent
....elements["elementname"].onchange?
Did you test it to see? And if so, what happened?
how can i make sure that it's my function that runs and not the others?

You can start by testing it.

window.onload = resetSelectOnChange(){
document.forms['formID'].elements['selectName'].onchange=functionToExecuteOnChangeThatWillSuperse deAnyOtherThatWasAssignedBeforeNowAndWillExecuteUn lessYouRedefineAnotherOne;
}

Note the lack of () on the function name.
--
Randy
comp.lang.javascript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/

Apr 27 '06 #4

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