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Dynamically Editting <BODY> Tag

Posted on 2001-06-25
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Last Modified: 2008-03-04
Good day. I want to dynamically change at run time

from

<BODY>
Blah Blah Blah
</BODY>

to

<BODY onscroll="alert('I am scrolling');">
Blah Blah Blah
</BODY>

Now I have have two frames called Left and Right. I manipulated the outerHTML property of the Right document by doing this

var RightOuterHTML = parent.frames['Right'].document.body.outerHTML;
var BodyPos = (RightOuterHTML.indexOf('<BODY'))+6;
var beginstring = RightOuterHTML.substring(0,BodyPos);
var endstring     = RightOuterHTML.substring(BodyPos);
var code = "onscroll=\"alert('Scroll');\" ";
var totalstring = beginstring + code + endstring;
parent.frames['Right'].document.body.outerHTML = totalstring;

Which, as you can see, finds the <BODY tag and splits the outerHTML string into two pieces, then adds the code, and rejoins all the pieces into the outerHTML string. This is painful but works all the way to the last line and gives a runtime error. It appears not to like replacing the outerHTML string.

Does anyone have a better idea of doing this? Or at least knows what I am doing wrong?
Thanks...
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Question by:rose337
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4 Comments
 
LVL 5

Expert Comment

by:djbusychild
ID: 6225076
why don't you just register an event handler?

<html>
<head>

<script>
function handleScroll() {
     alert("YOU ARE SCROLLING");
}

function activate() {
     document.body.onscroll=handleScroll;
}
</script>

</head>
<body>

<button onclick="activate();">click</button>

<img width="800" height="600" />
</body>

</html>
0
 

Author Comment

by:rose337
ID: 6226388
I would except that I have 50 pages that I have to do this to. But they all pop up in the right frame by clicking a link from a menu in the left frame. So I am adding javascript to the link, so that when the link is pressed, the page loads in the right frame, and then the scrolling code is added to to page in the right frame. Therefore, I do not have to added 50 pieces of the same code, but rather 1 piece of code to the left frame, and life is easy. Well, that is the theory. So any ideas?
0
 
LVL 5

Accepted Solution

by:
djbusychild earned 100 total points
ID: 6226402
I don't think that makes any difference.

you can still refer to the document of the frame

parent.frames["right"].document.body.onscroll
0
 

Author Comment

by:rose337
ID: 6226416
Works great! Thanks...
0

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