image size

[rsstewart]

Is there a simple way to determine an image's size?

example:


image1= "\images\photo1.jpg" (or a variable I set)
myheight= image1.height
mywidth = image1.width

<img src=image1, width=mywidth, height=myheight>

[Roelf]

change it to:

image1= new Image();
image1.src = "\images\photo1.jpg" (or a variable I set)
myheight= image1.height
mywidth = image1.width

then document.write the image tag (or add it to

[rsstewart]

Ok. great. now is there a way to make that image open a new window that size in the foreground, and show the picture in it?

[Roelf]

yes there is, try doing a search in this forum at window.open or something like that. It should bring up enough info

[rsstewart]

Hey! I got it to work. except that it only work when I click the first one. Now I need to know how to change the size of an existing window....

[Roelf]

try looking at http://www.devguru.com/Technologies/ecmascript/quickref/window.html method resizeTo

[rsstewart]

http://www.chroofing.com/metal_featured_casa1.htm


view this page. It works great the SECOND time you click the thumbnail. The first time I click a thumbnail, it pulls it up in a very small window. I can't figure out why. If anybody can help me finish this, I would really appriciate it.

Thanks.

[Roy Sinclair]

Originally posted by rsstewart
http://www.chroofing.com/metal_featured_casa1.htm


view this page. It works great the SECOND time you click the thumbnail. The first time I click a thumbnail, it pulls it up in a very small window. I can't figure out why. If anybody can help me finish this, I would really appriciate it.

Thanks.

I would guess that this line: if (! window.focus)return true; is executing the first time you click the link.

[rsstewart]

That didn't seem to fix it...

I had a thought:

Does the picture need to be loaded for my script to read the height and width?

If so, this would explain why it never works until you've clicked the picture once. How can I get the picture properties before the image loads, or to wait to resize it until after the pitcure loads?

[rsstewart]

anybody?

[Roelf]

Originally posted by rsstewart
Does the picture need to be loaded for my script to read the height and width?

yes it does, the browser has to have the picture loaded, before it can determine the size of it

[Roelf]

Originally posted by rsstewart
If so, this would explain why it never works until you've clicked the picture once. How can I get the picture properties before the image loads, or to wait to resize it until after the pitcure loads?
use the Image.complete property combined with a loop to determine if the image is loaded

Image.complete is documented here
http://www.devguru.com/Technologies/ecmascript/quickref/image.html