[Xitami] a bit off topic

[Michael diLorenzo]

I don't know a WHOLE lot about web design, but I use Dreamweaver to do a 
lot of mine.  I have found that the following code:

<div id="Layer1" style="position:absolute; left:8px; top:11px; 
width:533px; height:146px; z-index:1"><img src="/global/clear.gif" 
width="400" height="100"></div>

Will place a gif in on a "layer" overtop of my image.  This gif is just a 
clear image, the same size as the picture.  I can see through this image, 
but my right-clicks register on the clear image instead of the picture 
behind it.  Therefore, any right (or left) click views/saves the clear 
image.

I haven't played with it a lot, and it doesn't address the web cache 
issue, but there ya go.  :-)

Michael

On Tue, 25 May 2004 08:40:22 -0600, Johannes Prost <xitami@pastryworld.ca> 
wrote:

> Hi Jill,
>
> found that info on the net too, and didn't liked the idea, because of 
> Jscript and the way around
> it.
> But thank's for the input.
>
> Johannes
>
> Am 24 May 2004 um 13:56 hat Jill Douglas geschrieben:
>
>> Johannes,
>>
>> You can use a simple JScript code that disables the typical visitor from
>> doing a 'right-click' to save images like this:
>>
>> Paste this code into the HEAD of your HTML document
>>
>> <HEAD>
>>
>> <SCRIPT LANGUAGE="JavaScript1.1">
>>
>> <!-- Begin
>> function right(e) {
>> if (navigator.appName == 'Netscape' &&
>> (e.which == 3 || e.which == 2))
>> return false;
>> else if (navigator.appName == 'Microsoft Internet Explorer' &&
>> (event.button == 2 || event.button == 3)) {
>> alert("Sorry, you do not have permission to right click.");
>> return false;
>> }
>> return true;
>> }
>>
>> document.onmousedown=right;
>> document.onmouseup=right;
>> if (document.layers) window.captureEvents(Event.MOUSEDOWN);
>> if (document.layers) window.captureEvents(Event.MOUSEUP);
>> window.onmousedown=right;
>> window.onmouseup=right;
>> //  End -->
>> </script>
>> </HEAD>
>>
>>
>>
>> BUT.... This script is *NOT* fool-proof. People can disable JavaScript
>> support in their browser, use a browser which doesn't support 
>> JavaScript, or
>> use a browser to link directly to the image that you want to protect. 
>> Also
>> the pages and images are normally stored in the user's browser cache 
>> (for
>> viewing later whilst offline) - with a little bit of work, the thief 
>> could
>> find your image in their cache. It also doesn't stop users accessing the
>> source of your page from the toolbar menus (View | Page Source). You 
>> could
>> attempt to load your page into a window without toolbars - but again 
>> this
>> isn't fool-proof. They can access the page directly, with toolbars, 
>> instead
>> of opening it without them as you intended. There is a tool for 
>> Microsoft
>> Internet Explorer 5 that will encrypt JScript code - but this is only
>> supported by Microsoft Internet Explorer 5 - and will not allow the 
>> scripts
>> to run on any other browser.
>>
>> Bearing this in mind, the above script should stop right clicks (and 
>> left
>> button held down, followed by a right click) in both Netscape Navigator 
>> and
>> Microsoft Internet Explorer. It will not stop users who use a Mac - 
>> where
>> the mouse only has one button.
>>
>> If this script doesn't do what you require (i.e. protect your images 
>> and or
>> your scripts) then don't use it and don't put your images/scripts on the
>> net. If your livelihood relies on people not copying your images - then 
>> add
>> a water mark or "sample" stamp to your images.
>>
>> Jill
>>
>>
>>
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>
>
>
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