<SCRIPT LANGUAGE="JavaScript">
<!--
var Color= new Array(16);   
Color[1] = "ff";
Color[2] = "ee";
Color[3] = "dd";
Color[4] = "cc";
Color[5] = "bb";
Color[6] = "aa";
Color[7] = "99";
Color[8] = "88";
Color[9] = "77";
Color[10] = "66";
Color[11] = "55";
Color[12] = "44";
Color[13] = "33";
Color[14] = "22";
Color[15] = "11";
Color[16] = "00";

function fadeIn(where) {
if (where >= 1) {           
	document.bgColor="#" + Color[where] +"0000";
	where -= 1;                     
	setTimeout("fadeIn("+where+")", 50); 
} 
else {
	setTimeout('fadeOut(1)', 50);        
}
}

function fadeOut(where) {
if (where <=16) {         
	document.bgColor="#" + Color[where] +"0000"; 
	where += 1;                    
	setTimeout("fadeOut("+where+")", 50)  
} 
else {
	setTimeout("fadeIn(16)", 50);         
}
}
//-->
</SCRIPT>
<body onLoad="fadeIn(16)"> 
<font color="#ffffff">背景在不断的闪烁</font>
</body>