css/javascript visibility visible/hidden is very slow on Blackberry -

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document.getelementbyid("spinner2").style.visibility="visible"

visibility visible/hidden slow on blackberry (os4.6). screen seems redrawing makes unusable in ajax application.

the goal put visible feedback user while ajax request completes.

can suggest alternatives?

if change layout you'll redraw. if single redraw slow you're layout heavy mobile application guess.


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