how to show a loading page for some n seconds

I want to show some loading content for some seconds then I want to show the first page, 开发者_运维技巧loading page content some thing lik

<div class="well-bgs">Loading..</div>

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Ok, I'll guess...

    $.mobile.pageLoading(); 

//when it's loaded          
    $.mobile.pageLoading( true );

http://jquerymobile.com/demos/1.0a4.1/#docs/api/methods.html