jsf - IceFaces: panelPopup autoCentre problem with IE -

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i'm having problems panelpopup , ie8. when set autocentre="true" , positiononloadonly="true", expect popup appear in center of view port , stay put there. works fine in safari, chrome , firefox, in ie popup "follows scroll", if see mean. i.e if page popup displayed longer popup popup re-centered when scroll page. also, , bigger issue - if popup longer page can scroll part of way down it, it's re-centered. means can never see information @ bottom of popup...

this code used generate popup:

<ice:panelpopup
id="popup"
positiononloadonly="true"
autocentre="true"
style="z-index:999; background: #ffffff;"
resizable="false"
draggable="false"
modal="true"
clientonly="true"
visible="#{somebean.popuprendered}" >

any ideas?

thanks!

according documentation, autocentre option supposed keep centered through scrolling , window resizing dragging should disable it. turning draggable true might give reasonable results because user can drag position can see entire popup.


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