/**
 * jQuery.fullBg
 * Copyright (c) 2010 c.bavota - http://bavotasan.com
 * Dual licensed under MIT and GPL.
 * Date: 02/23/2010
**/
(function($){
	$.fn.fullBg = function(){
		var bgImg = $(this);		
		
		function resizeImg(){
			var imgwidth	= bgImg.width();
			var imgheight	= bgImg.height();
			
			var winwidth	= $(window).width();
			var winheight	= $(window).height();
			
			var widthratio	= winwidth / imgwidth;
			var heightratio	= winheight / imgheight;
			
			var widthdiff	= heightratio * imgwidth;
			var heightdiff	= widthratio * imgheight;
			
			if(heightdiff > winheight){
				bgImg.css({
					width:	winwidth + 'px',
					height:	heightdiff + 'px'
				});
			}
			else {
				bgImg.css({
					width:	widthdiff + 'px',
					height:	winheight + 'px'
				});
			}
		}
		
		resizeImg();
		
		$(window).resize(function(){
			resizeImg();
		});
	};
})(jQuery)