Move content from one div to another

$(document).ready(function(){
    $(".homepage #cmsPageHeader").appendTo("#pagebannercontainer");

});

If you need to create an outer wrapper then create a new div and paste e,g,

$(document).ready(function(){

 $(".homepage #pagebannercontainer").append('<div id="pbc-inner"></div>');
 $(".homepage #cmsPageHeader").appendTo("#pbc-inner");

});