function randombackground()
 {
   document.bgColor = getColor();
 }

function getColor()
{
currentdate = new Date();
backgroundcolor = currentdate.getSeconds();
if (backgroundcolor > 44)
backgroundcolor = backgroundcolor - 45;
else if (backgroundcolor > 29)
backgroundcolor = backgroundcolor - 30;
else if (backgroundcolor > 15)
backgroundcolor = backgroundcolor - 16;
if (backgroundcolor == 0 )
return "#FFFFFF";
else if (backgroundcolor == 1 )
return "#FFFFFF";
else if (backgroundcolor == 2 )
return "#FFFFFF"; 
else if (backgroundcolor == 3 )
return "#FFFFFF";
else if (backgroundcolor == 4 )
return "#FFFFFF";
else if (backgroundcolor == 5 )
return "#FFFFFF";
else if (backgroundcolor == 6 )
return "#FFFFFF";
else if (backgroundcolor == 7 )
return "#FFFFFF";
else if (backgroundcolor == 8 )
return "#FFFFFF";
else if (backgroundcolor == 9 )
return "#FFFFFF";
else if (backgroundcolor == 10 )
return "#FFFFFF";
else if (backgroundcolor == 11 )
return "#FFFFFF";
else if (backgroundcolor == 12 )
return "#FFFFFF";
else if (backgroundcolor == 13 )
return "#FFFFFF";
else if (backgroundcolor == 14 )
return "#FFFFFF";
else if (backgroundcolor == 15 )
return "#FFFFFF";
}