NN 4.0+ I/layer Self-awareness
Jul 20, 2005
I have written a javascript routine that populates a parent document
with a series of <iframe>s. Each <iframe> receives its contents from a
series of separate smaller HTML files. Of course my NN 4.8 browser
doesn't deal well with the <iframe> so I wrapped the code that generates
the <iframe> in <ilayer> tags. NN now recognizes the contents.
However within each of the 'content' files I have another javascript
routine that basically displays the file name (via document.URL &
document.write) of the content file. My IE 5.5 & Mozilla 1.5
understands this perfectly. However my NN responds to the document.URL
with the wrapper/parent document's URL, not it's own unique file name.
I've named/ID'd the iframes & ilayers. If the document.URL fails I can
still make use of the ilayer ID but I need to know the index into the
layers array. I can hard-code a index value into the
document.layers[x].name but given that the position of the particular
content file is dynamic within the parent, the index is going to be
wrong 9 out of 10 times. There doesn't seem to any way for an i/layer
to know who it is Code:
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Apr 4, 2002
Layer writing in Netscape. This is pretty straightforward >> However I'm trying to write to a <div> layer within a <div> layer.
My div:
Code:
<div id="blah">
<div id="aight">
</div>
</div>
I'm trying to write to "aight"
How should my code look?
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Jan 30, 2009
I have created a floating layer using Javascript that remains always on top of page on scrolling.Issue is,at some point while scrolling,the layer flickers continuously.
The html page is as follows:
Many common software systems, JavaScript has a history of security problems. Many of these problems could allow a person with malevolent intent to steal sensitive information from a visitor. The number and type of such holes in security vary among browsers and operating system versions. Most JavaScript security holes have been caught and fixed, but new ones are being discovered all the time. For a list of current security holes check out your browser's and operating system's Web pages. As a Web site author, it is your responsibility to keep up-to-date on the current status of known security holes in the applications you create.
Signing Scripts. In Chapter 11, I explained that JavaScript does not provide the ability to directly access files on the client computer. This can be a very large hurdle to overcome if you're trying to upload a file to a server from the client computer. Fortunately, file uploading is one of many functional enhancements that signed scripts provide. Signed scripts are specially packaged scripts that have been verified and signed to be correct and non-threatening. These scripts have additional rights on the client computer that allow a programmer to do many things that he wouldn't otherwise be able to.
With the introduction of Netscape 4.0, a new security model was put in place that would allow digitally signed scripts to bypass some of the restrictions that had previously been placed on them. A signed script can request expanded privileges from the visitor and, with the visitor's permission, gain access to restricted data. A signed script requests these additional permissions through LiveConnect, which allows your JavaScript code to communicate with the Java Capabilities API. The security model allows JavaScript to access certain classes in Java in order to extend its functionality while still maintaining tight security for the client.
A digital signature is a fingerprint of the original programmer, and it allows the security model of the browser to detect where (or from whom) it originated. A script signer can be a person or an organization. By signing a script, you acknowledge yourself as the author and accept responsibility for the program's actions. A signed script contains a cryptographic checksum, which is just a special value that ensures the signed script has not been changed. When a digital signature is detected, you are assured that the code has not been tampered with since the programmer signed it.
Once you finish writing a script, you can use the Netscape Signing Tool to digitally sign it. Signing a script does the following:
Unambiguously assigns ownership of the script to a person or organization.
Allows an HTML page to use multiple signed scripts.
Places the signed script into a Java Archive (JAR) file.
Places the source of the script in the JAR file.
Once a user confirms the origin of the script and is assured that it has not been tampered with since its signing, he or she can then decide whether to grant the privileges requested by the script based on the validated identity of the certificate owner and validated integrity of the script.
JAVASCRIPT FILE IS AS FOLLOWS:
AND CSS FILE IS AS FOLLOWS:
At some point while scrolling,the div 'movable' flickers continuously,while at some other point,it is perfectly stable.
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Jul 23, 2005
I am trying to make a banner the size of the with of my screeen, in
a layer.
BUt I also want to fade it to a complete transperency to reveal the contents
of what's behind it (my page ofcourse) and possible close or hide the faded
layer.
I've seen stuff like that happen in a flash everonment. I was thinking about
using a transition at first to go from one page to another with an
introductory page.
But I rather have everything on one page and just fade the introdutory layer
into the page. Is that too much work for jscript?
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Jul 23, 2005
I have a strange behaviour when applying onmouseout to a layer. it is
not trigged when the pointer goes out of the _layer_ but when it goes
off the _text within_ the layer.
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Jul 23, 2005
I want to create a layer that 100% wide, 200 px high and stays at the
bottom of the screen, even when the page is scrolled, how do I do this?
I have seen it on websites but can't find any example code ...
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Jul 19, 2006
Can someone please tell me how to print a single layer?
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Apr 2, 2005
I want a scrolling JS layer (not CSS) am trying to fit it into an already existing site design which the client doesn't want to change. It works fine when i try it on a new page but the moment I put it into my actual page where it has to fit into a particular are (I used the overflow: hidden it doesn't behave!!
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Jul 23, 2005
I've got a web page which uses lots of divs to position the content of the
page and I'm using a nice javascript to alter the css of a table of links.
The thing is I don't want the table of links to point to an external site
but to calla function which will replace the content of a layer... perhaps
it's be better if I showed you the code:
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Jul 23, 2005
I am using javascript to open a new window like this:
printpreview=window.open('printview.php','printpre v','width=600,height=600');
The new window has a layer called preview:
<div id="preview"></div>
I am now trying to write to that layer using innerHTML = "blah bla";
How do I refer to that layer?
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Sep 27, 2005
I have an image on a web page within a css layer:
<DIV ID=MyLayer
STYLE = "position: absolute;top:68px; left:563px;
width:640px;height:480px;">
<IMG src="ReportImageBox_12.54.52.png" width=640 height=480></IMG>
</DIV>
I need that the parts of this layer which have a certain color
(for instance "white") be rendered transparent.
My question. Is it possible to have a simple javascript function
to incorporate in the web page which does this?
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Feb 21, 2006
I was wondering if it was possible (and if so how) to put a layer ontop
of frames. What I mean is that I would be able to put anything,
including tables ontop of frames so that it could go ontop of two
frames at once, independent of everything else.
Also if it is possible, how would I make it stay still, evenwhen the
page is scrolled... like so that it doesn't even giggle or anything it
stays fixed..
Also, on another subject how would i make it appear next to the top
right hand corner of a cell in a table?
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Jul 20, 2005
Can someone help me figure out how to show a hidden layer *ONLY* if the
browser is IE for windows? I want it to remain hidden for everything else,
Netscape, Opera, Mozilla and anything for Mac. I'm not having much luck
out here.
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Mar 31, 2009
this is driving me nuts. I'm not new to programming, except that I've been avoiding Javascript for long time and now it's biting me back.
I have form in which I have among other element a series of checkboxes. These have different id, and values but same name attributes. These attributes are populated with good old ASP spaghetti code.
When I check the box, I want a Div tag called "floatleyer" to populate with a duplicate checkbox and it's value ( a string). So now we have pair of check boxes one the page and a matching one in the div area. If you un-check either box of the matching pair the other member of the given pair gets un-checked as well. In addition, the box and value string from the floatleyer is completely removed.
[Code]...
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May 1, 2010
This is my code:
Now i want the second layer to appear when i hover over the first, which it does. however i want it so that when i move my cursor away from the second layer it dissapears but the problem is it doesn't seem to work.
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Nov 29, 2005
I want to have some text inside a layer scroll up or down when the mouse moves over a certain image.
I tried this:
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Dec 23, 2009
I need to populate a layer with multi line text. My code below works ok on the document. write to the layer when the function is fired.
<script type="text/javascript">
function insertText(){
var mytext = "The Text to be shown in layer1!
[Code]....
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Jul 12, 2009
Does anyone know this frame layer pop up because I found it the other day but forgot the google keywords I used to find it. Now I cannot find it anymore to save my life but need it
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Dec 28, 2004
i have a layer based website where one layer is holding all the copy and images... depending on the length a div based scrollbar appears and the user can move the content layer up/down...
now i was wondering if it would be possible to include a print button which would ONLY print out the content within the content layer.
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Mar 23, 2005
I have come to my whits'-end looking for some code to update a layer with a timer, with data from another page.
I know this is possible, I have seen it before, but wouldn;t have a clue where :'(
Has anyone done this before, or could someone point me in the right direction?
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May 25, 2005
I have a link on my homepage that when clicked I would like it to go to page2.html and show a particular hidden layer.
This is what I have on the homepage:
<a href="page2.html?onClick="MM_showHideLayers('layer1','','show','layer2','',' hide','layer3','','hide')">layer3</a>
I don't have a clue how to pass javascript to another page. Does this involved sending a script through the browser.
This isn't working either
<a href="page2.html?javascript:show_div('layer1');">
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Sep 4, 2005
just wondering if anyone know of any links or tutorials on creating dragable layers that can snap or doc to another layer?
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Feb 10, 2006
Below code creates a tabbed navigation. Works well. But how do I set it up so Tab 1 shows when the page is loaded?
Code:
<script type="text/javascript">
function initShowHide() {
if (document.getElementById && document.getElementsByTagName && document.createTextNode) {
hide();
var toggle = document.getElementById('toggle');
var as = toggle.getElementsByTagName('a');
for (var i = 0; i < as.length; i++) {
as[i].onclick = function() {
show(this);
return false;
}
}
}
}
function show(s) {
hide();
var id = s.href.match(/#(w.+)/)[1];
document.getElementById(id).style.display = 'block'
}
function hide() {
var toggleable = document.getElementById('toggleable').getElementsByTagName('div');
for (var i = 0; i < toggleable.length; i++) {
toggleable[i].style.display = 'none'
}
}
window.onload = initShowHide;
</script>
<style type="text/css">
#tabsB {
width:100%;
font-size:93%;
line-height:normal;
}
#tabsB ul {
margin:0;
padding:2px 10px 1px 0px;
list-style:none;
}
#tabsB li {
display:inline;
margin:0;
padding:0;
}
#tabsB a {
float:left;
background:url("tableftB.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsB a span {
float:left;
display:block;
background:url("tabrightB.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
/* Commented Backslash Hack hides rule from IE5-Mac */
#tabsB a span {float:none;}
/* End IE5-Mac hack */
#tabsB a:hover span {
color:#000;
}
#tabsB a:hover {
background-position:0% -42px;
}
#tabsB a:hover span {
background-position:100% -42px;
}
</style>
</head>
<body>
<table width="50%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td>
<tr>
<td><div id="tabsB">
<div align="left">
<ul id=toggle>
<li><a href="#1"><span>1 </span></a></li>
<li><a href="#2"><span>2</span></a></li>
<li><a href="#3"><span>3</span></a></li>
</ul>
</div>
</div></td>
</tr>
<tr>
<td bgcolor="#F7F7F7" style="border-bottom:1px solid #CCCCCC; border-left:1px solid #CCCCCC;border-right:1px solid #CCCCCC;">
<div id="toggleable">
<div id="1">Tab 2</div>
<div id="2">Tab 2</div>
<div id="3">Tab 3</div>
</div></td>
</tr>
</table>
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Feb 24, 2007
in dreamweaver there's that show/hide layers behavior
can that be somehow tweaked to show hide layers in another window, to be specific parent window of the one triggering the show/hide?
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Apr 3, 2002
I'm currently working on developing some new advertising formats to please our advertiser with, and one of them includes a special ad layer thing overlaying the normal content of a webpage. All works fine and dandy, untill I try to overlay a drop-down box, which shines right through the layer which should be placed over the content ... how do I solve this?
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Apr 22, 2002
I have this bit of javascript:Code:
function toggleVisible(divname) {
divstyle = getDivStyle(divname);
if (divstyle.visibility == 'visible' || divstyle.visibility == 'show') {
divstyle.visibility = 'hidden'
} else {
fixPosition(divname);
divstyle.visibility = 'visible'
}}
The problem is I need this function to turn all other visible layers to hidden.... Does someone know how to refer to all layers in a document and turn their visibility to hidden? I can then call that function from the above...
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