id attribute of <body> tag

571 512MB

I want to dynamically add a hidden <div> </div> to a document when loading my page. It is kind of a generic scratch pad into which I can load messages and data I may want to display to the user. I want to do it this way so I can place it in my base .js file for inclusion in all apps I write without having to reinvent the wheel each time.

My problem is this; the <body> tag does not seem to pass the "id" value but rather the name of the application. I am using fireFox.

In this example the obj parameter becomes "appName.exe". And when I try to use the id in the function addScratchPad(obj) like this
var cThisApp = obj.id
I get an "undefined" error.

I want to use the id value to insert the scratchPad into the document like this
document.getElementById(cThisApp).innerHTML = "<div>.... other conten.. </div>

Here is my code:

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 <HEAD>
 
<TITLE> dailyTimeReview </TITLE>
 
  <script type="text/javascript" language="JavaScript"    src="Navigation.js"></script>

<script language="JavaScript">

<!--])

 function myStartUp(obj) 

   {   

          addScratchPad(obj);

          aDepts = cMyDepts.split('~');

   }  

//-->

</script>
 
</HEAD>
 
<body

    id  ="testForm"

    onLoad = "myStartUp(this);"

>

function in the .js file

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 function addScratchPad(obj)

{

//this next line fails

alert(obj.id);

}

Jan 27 '09 #1

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1695

Dormilich

8,651

Expert Mod 8TB

that's because "this" points to the window object (FireBug proved useful again).

to get the id I needed

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 function addScratchPad(obj)

{

    alert(obj.document.body.id);

}

Jan 27 '09 #2

Claus Mygind

571

512MB

Hey that works great Dormilich. Thanks for the tip.

Jan 27 '09 #3

Dormilich

8,651

Expert Mod 8TB

if you're doing quite a lot of Javascript and HTML, FireBug will definitely help you (esp. the script runtime features, and the DOM view)

Jan 27 '09 #4

Claus Mygind

571

512MB

Thanks I already use it. I saw what you saw but just did not comprehend it.

Jan 27 '09 #5

Dormilich

8,651

Expert Mod 8TB

admittedly, fiddling through all the DOM data is a bit difficult.

Jan 27 '09 #6

id attribute of <body> tag

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