function backgroundSet(){
	var today  = new Date();
	var hour24 = today.getHours();
	if(hour24 >= 6 && hour24 <= 8){
		$('#mainContentAreaContainer').addClass('morning');
	}
	if(hour24 >= 9 && hour24 <= 17){
		$('#mainContentAreaContainer').addClass('daytime');
	}
	if(hour24 >= 18 && hour24 <= 20){
		$('#mainContentAreaContainer').addClass('evening');
	}
	if(hour24 >= 21 && hour24 <= 24){
		$('#mainContentAreaContainer').addClass('nighttime');
	}
	if(hour24 >= 0 && hour24 <= 5){
		$('#mainContentAreaContainer').addClass('nighttime');
	}
	
	//$('#mainContentAreaContainer').addClass('daytime');
}

$(document).ready(function(){
	backgroundSet();
});