var myDate=new Date();
var myHour=myDate.getHours();
if (myHour>=6 && myHour<10) {
	document.write('<style type="text/css"> body { background: url(/images/bg_1.jpg) 50% 0 no-repeat #aa9159; } </style>');
} else if (myHour>=10 && myHour<14) {
	document.write('<style type="text/css"> body { background: url(/images/bg_2.jpg) 50% 0 no-repeat #e3d0bf; } </style>');
} else if (myHour>=14 && myHour<18) {
	document.write('<style type="text/css"> body { background: url(/images/bg_3.jpg) 50% 0 no-repeat #e8dcc2; } </style>');
} else if (myHour>=18 && myHour<22) {
	document.write('<style type="text/css"> body { background: url(/images/bg_4.jpg) 50% 0 no-repeat #303948; } </style>');
} else {
	document.write('<style type="text/css"> body { background: url(/images/bg_5.jpg) 50% 0 no-repeat #100c03; } </style>');
}