The main problem you have is the size of the overlays.
I've seen at least 2 of them 3.5 MB each. That's huge!

If you break them up into tiles, and load them as a GTileLayerOverlay
it would go much faster.
When you load them as one big image that then gets scaled down on
display, you're sending a truckload of unnecessary bytes to the
browser.

Search the group, (and the Mapki), for a "tile cutter".
You'd first scale them and then cut tiles for each zoom level.

To give you an idea of the difference in loading time, take a look at
this map:
http://maps.forum.nu/gm_main.html?lat=36.949892&lon=-99.667969&z=4&mType=13
Same area of coverage, much faster loading.

BTW, check your opening <html> tag.

--
Marcelo - http://maps.forum.nu
--



On Jan 30, 11:15 am, Seth <[email protected]> wrote:
> Alright guys, I have been working on a project for the past few
> months, I have learned quite a bit, but also I have made quite a list
> of problems.
>
> Here is the site for reference (coverageviewer.info) Now, most of what
> I am talking about is on the "Beta Viewer" page. Here are my
> questions...
>
> -Is there any way to have a layer (Map) load and show a progress bar
> when called up (via a Radio Button or Check Box) Currently all 7
> layers load when the page is loaded and all but one are hidden.
> Basically I want to be able to toggle between the different coverage
> maps and overlay the Spectrum maps. If I cant load on call, is it
> possible at all to display some kind of progress bar so it doesn't
> look like nothing is loading?
>
> -This is the big one, currently I am using semi-transparent PNG images
> so that the roads layer is visible underneath. While having the
> transparency adds ability to see aerials and the other maps, zooming
> in causes the coverage layer to dissapear. So, a.) Is there a way to
> use a GIF overlay (smaller file, faster load) and just have the "Map
> Layer" from the Aerials be overlayed? I know there has been some
> discussions on this before. or b.) not have the maps dissapear when
> zooming in. For reference, it appears that the maps stay no matter how
> far you zoom in on Safari only. I don't know if that is because of it
> being Webkit. I don't know any other Webkit browsers to test that out
> on.
>
> -The layers just don't even load in IE 7. I have spent so much time
> trying to make this work in IE, I am sick of having it always work in
> everything BUT IE. So thats pretty much an "if its easy or have time"
> thing. I'm not going out of my way for IE.
>
> -Other than that anything else that would make the site work better,
> load faster, be more stable and be overall easier to use. I assume
> most of you have cell phones, so I think you can see the idea of the
> site, basically, if you were looking for that information, what would
> you expect from that site? Its not meant to be anything like a company
> or anything, it was just something I threw together in my spare time
> for the people over at HoFo, and it kinda became a project and
> somebody gave me some server space, so, its kinda panned out. Its more
> really a learning experience. :-)
>
> -Also, one side note. I was working on the side to try and make an
> iPhone version of this. I took some of the stuff from these boards on
> making a full screen deal that can be navigational easier on the
> iPhone. Everything works okay, I just can't get the layers to load. If
> light could be shed on that it would be ncie too. :-) I have a test
> site loaded up at coverageviewer.info/iphone/
>
> Thanks again! I know I have quite a bit of questions, but ANY help on
> anything would be very appreciated. I would love to add other carriers
> at some time, but unless I can figure out a way to add more layers
> without loading them and hiding them, I can't go much further. The
> page already takes forever to load as it is.
>
> Seth
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