$(document).ready(function(){
    $(window).resize(function(){
        if(!$.browser.msie){
	        setBg();
        }
	});
    setBg();
});

function setBg(){
	var ratio = 1600/1030;
	if( $(window).width() / $(window).height() > ratio){
	    $('#background img').css({height: 'auto', width: '100%'});
	}else{
	    $('#background img').css({width: 'auto', height: '100%'});
	}
	$('#background img').css({'display':'block'});
}