To begin with I find your question very unclear, but let me try:
Make sure that you have a css class that defines the image:
.recordingBackground
{
background-image: url("record.png");
}
(Or just use javascript)
Create the button:
<input type="button" id="recordButton" value="Record" />
Make jQuery listen to the button and you can add the class to the element:
$('#recordButton').live("click", function()
{
$('#background').addClass('recordingBackground');
// Or use a similar method (for example: pure javascript).
// #background is just an example div.
});