Re: Problem with Image display on separate window

you are correct. setting the src starts a download, you should check readyState of the image before checking the size.

-- bruce (sqlwork.com)

tshad wrote:
Could this be that the image is not totally loaded yet?

The first thing it does is load the image into the image tag:

document.LogoDisplay.src = "..\\..\\uploads\\" + opener.document.getElementById('Logo').innerHTML;

Then it gets the size of the image:

id = document.getElementById("LogoDisplay");
w = id.width+10;
h = id.height+50;

is it possible by the time I get to this set of code only part of the image is loaded and the all subsequent times it is getting the image from some cache that is quicker?

I can't think of any other reason that would cause this?

Thanks,

Tom

"tshad" <t@xxxxxxxx> wrote in message news:%23SHCO8tTHHA.5108@xxxxxxxxxxxxxxxxxxxxxxx
This was posted before but the message got messed up (all NLs were stripped
out for some reason).

I have 2 labels that hold the name of different images on my .aspx page.

<asp:Label ID="Logo" runat="server"/>
<asp:Label ID="CompanyPicture" runat="server"/>

I have 2 links that open the windows to preview these images. The previewed
images are done on separate html pages that do nothing but display the
image.

function OpenLogoPreviewWindow()
{

window.open('logoDisplay.htm','myWindow','menubar=no,toolbar=no,directories=no,resizable=no,scrollbars=no,location=no,status=no');
}
function OpenPicturePreviewWindow()
{

window.open('CompanyPictureDisplay.htm','myWindow','menubar=no,toolbar=no,directories=no,resizable=no,scrollbars=no,location=no,status=no');
}

This works most of the time. But the first time you do it, it has the wrong
dimensions. For example, for the CompanyPicture - the size is 502 by
400.The very first time a machine loads this picture, it will be incorrect.
It will be something like 38 by 87. From that point on it will be correct.
Even if I change the picture - it will size it correctly. It will also work
correctly if I reboot the machine.

To test it I need to go to another machine that has
never run it. The code for each page is:

LogoDisplay.htm
*********************************************************
function entry()
{
//alert("In LogoDisplay");
document.LogoDisplay.src = "..\\..\\uploads\\" +
opener.document.getElementById('Logo').innerHTML;
id = document.getElementById("LogoDisplay");
w = id.width+10;
h = id.height+50;
// alert ("w = " + w + " h = " + h);
window.resizeTo(w,h);
if (screen) {
x = (screen.availHeight - h)/2;
y = (screen.availWidth - w)/2;
}
window.moveTo(y,x);
window.focus();
}
</script>
</head>
<body onLoad="entry()">
<img name="LogoDisplay">
</body>
</html>
*********************************************************

CompanyPictureDisplay.htm
**********************************************************
function entry()
{
document.PictureDisplay.src = "..\\..\\uploads\\" +
opener.document.getElementById('CompanyPicture').innerHTML;
id = document.getElementById("PictureDisplay");
w = id.width+10;
h = id.height+50;
// alert ("w = " + w + " h = " + h);
window.resizeTo(w,h);
if (screen) {
x = (screen.availHeight - h)/2;
y = (screen.availWidth - w)/2;
}
window.moveTo(y,x);
window.focus();
}
</script>
</head>
<body onLoad="entry()">
<img name="PictureDisplay">
</body>
</html>
****************************************************************

Thanks,

Tom







.

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