<div dir="ltr">Sorry about that I should have read your email a bit closer, I made an assumption and well it made something out of me :-) I'm afraid I haven't toyed too much with events triggered by vector layers so somebody else will have to help you out with this one.<br clear="all">
--<br>Nathan Gerber<br>
<br><br><div class="gmail_quote">2008/10/18 dequan chen <span dir="ltr"><<a href="mailto:cdqrain@gmail.com">cdqrain@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
thanks ngerber.<br>
but you may misunderstand my issue.<br>
It doesn't relate to PNG image.<br>
I use some OpenLayers.Layer.Vector as map layers. these layer will<br>
display LineString, Polygon etc. and each Vector Layer has its<br>
JavaScript event. But, in IE6, the top vector layer covers the map<br>
completely. It will result in the lower vector layer's event can not<br>
be responsed.<br>
In IE7 or FireFox, it works well. Every vector layer's event can be triggered.<br>
<br>
2008/10/17, Nathan Gerber <<a href="mailto:ngerber999@gmail.com">ngerber999@gmail.com</a>>:<br>
<div><div></div><div class="Wj3C7c">> If you are using PNG images this is a known issue and there is little you<br>
> can do beyond trying another format such as GIF or telling your users to get<br>
> a more modern web browser. There is a hack to enable the use of alpha<br>
> transparency int he PNG images within IE6 but it has a severe effect on<br>
> performance.<br>
> --<br>
> Nathan Gerber<br>
><br>
><br>
> 2008/10/16 dequan chen <<a href="mailto:cdqrain@gmail.com">cdqrain@gmail.com</a>><br>
><br>
>> hi.<br>
>> I use more than one openlayers vector layer to overlay the map. every<br>
>> layer<br>
>> has its event. in IE6, the upper layer covers completely the lower layer.<br>
>> so, the other vector layer event can not be triggered. in IE7 or firefox,<br>
>> there's no this issue.<br>
>> I try to render the vector layer div border, and find the div fill the<br>
>> entire map. in IE7 or firefox, the border shrinks to the top left corner.<br>
>> so the layer don't cover the lower layer.<br>
>> how to solve this problem ? thanks. :-)<br>
>><br>
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>><br>
>><br>
><br>
</div></div></blockquote></div><br></div>