$(document).ready(function() {
	$(window).bind("resize", function(){
	  	var $winheight = $(window).height();
		var $winwidth = $(window).width();
	  	if ($winheight/$winwidth < .75) {
			$("div.bkg-image img").attr({
			width: $winwidth
		});
		 } else {
			$("div.bkg-image img").attr({
			height: $winheight
		});
		}
	 });
});