getElementsByTagName(&;quot;input&;quot;).value); Returns the undefined value
Help, please! The API DW getElementsByTagName() function returns no value.I'm defining the following form part of an extension of bar insert:
(skip the usual of head)
< body onLoad = "reportLabel ()" >
< form >
< table border = "0" height = "100" width = "100" >
< tr valign = 'of basic">
< td align = "left" nowrap >
A label:
< input type = "text" name = "label_field" value = "" id = "alabel" > "
< table >
< /tr >
< /table >
< / make >
< / body >
< / html >
And the following JavaScript code:
function reportLabel() {}
Read the label of meta tag in the active document
var dom = DW.getDocumentDOM (); get the dom of the current document
var label = dom.getElementsByTagName ("meta");
for (counter = 0; counter < label.length; counter ++)
{
If (label [meter] .name is 'Label')
Alert (label [Counter]. Content); It works, the function reads the elements of document of the user very well
But how to find the extension form input field so that I can pre-populate it with the label?
Alert (document.getElementById("Alabel"). (Name) function undefined, grrr
Alert (document. GetElementsByTagName("Input").value); returns undefined-> This is the function I want to use
Alert (document.hasChildNodes ()); Returns true, then the DOM document is readable
Alert (document.childNodes.Length); Returns 2
Alert (document. Forms.Length); Returns the value 1
Alert (document. Forms.childNodes.Length); has no childNodes property
}
}
Thank you!
-Scott
getElementsByTagName() returns an ARRAY - so you can not use a point
operator about it as you have. You have to do, for example:
getElementsByTagName ('INPUT') [0] .value etc.
fMichel brandt
srowe3 wrote:
> Please help! The API DW getElementsByTagName() function returns none
> values.
>
> I'm defining the following form part of an extension of bar insert:
>
> (skipping the usual of head)
>
>
>
>
>
> And the following JavaScript code:
>
> function reportLabel() {}
>
> / / Read the meta tag tag in the active document
> var dom = DW.getDocumentDOM (); get the dom of the current document
> var label = dom.getElementsByTagName("meta");
> for (counter = 0; counter)< label.length;="">
> {
> If (label [meter] .name == "Label")
> / / alert (label [counter] content); It works, the function reads the
> the user of the document elements very well
>
> / / But how to find the extension form input field so that I can
> Pre-populate it with the label?
>
> / / alert (document.getElementById("alabel").name); function undefined,
> grrr
> / / alert (document.getElementsByTagName("input").value); Returns
> undefined---> this is the function I want to use
> / / alert (document.hasChildNodes ()); Returns true, then the DOM document is
> readable
> / / alert (document.childNodes.length); Returns 2
> / / alert (document.forms.length); Returns the value 1
> / / alert (document.forms.childNodes.length); has no childNodes property
> }
> }
>
> Thank you!
> - Scott
>
>
Tags: Dreamweaver
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