Set Grid header AW.UI.Input text background color

Hi Alex,

I am using AW 2.5, here i have a issue to changing AW.UI.Input background color within the grid header.Here i have two header and input field placed in the First column. So, i tried the below coading grid.getHeaderTemplate(1,1).setStyle("color","red");
but it fails to change AW.UI.Input background color.

I have tried grid.getHeaderTemplate(1,1).setStyle("background","red") but it won't help. Alex, give me you comments to overcome this problem.

input.getContent("box").setStyle("background", "red");
check also:
http://www.activewidgets.com/javascript.forum.20671.6/programatically-change-header-background-not.html