Full with element in middle of page

fullwidthelement.js

// Make an element in the page go full width
// Author: Bill Erickson
// URL: http://www.billerickson.net/code/full-width-element-middle-page/
function explodeWidth() {
		var browserWidth = $(document).width();
		var wrapWidth = $('.site-inner .wrap').width();
		var margin = ( ( browserWidth - wrapWidth ) / 2 );
		$('.explode-width').css( 'margin-left', - margin ).css( 'margin-right', - margin );
}
explodeWidth();
$(window).resize(explodeWidth);