var randnum = Math.random();
// Change this number to the number of images you are using.
var inum = 109;
var rand1 = Math.round(randnum * (inum-1)) + 1;
randnum = Math.random();
var rand2 = Math.round(randnum * (inum-1)) + 1;

var today = new Date();
var day = today.getDate();
if (day > 15)
{
day = day-15;
}
if (day > 15)
{
day = day-1;
}

function SetBackgroundColor()
{

switch (day)
{
case 1: document.body.style.backgroundColor = "#8B0101"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background1.jpg'; break;
case 2: document.body.style.backgroundColor = "#C71784"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background2.jpg'; break;
case 3: document.body.style.backgroundColor = "#FE4703"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background3.jpg'; break;
case 4: document.body.style.backgroundColor = "#000000"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background4.jpg'; break;
case 5: document.body.style.backgroundColor = "#BDB76B"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background5.jpg'; break;
case 6: document.body.style.backgroundColor = "#490181"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background6.jpg'; break;
case 7: document.body.style.backgroundColor = "#026302"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background7.jpg'; break;
case 8: document.body.style.backgroundColor = "#008081"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background8.jpg'; break;
case 9: document.body.style.backgroundColor = "#191971"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background9.jpg'; break;
case 10: document.body.style.backgroundColor = "#8C4613"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background10.jpg'; break;
case 11: document.body.style.backgroundColor = "#30504F"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background11.jpg'; break;
case 12: document.body.style.backgroundColor = "#05FDEB"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background12.jpg'; break;
case 13: document.body.style.backgroundColor = "#04FD49"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background13.jpg'; break;
case 14: document.body.style.backgroundColor = "#D70F00"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background14.jpg'; break;
case 15: document.body.style.backgroundColor = "#FFFB5C"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background15.jpg'; break;
default: document.body.style.backgroundColor = "#FFFFFF"; document.body.style.backgroundRepeat = 'repeat-x'; document.body.background = 'bkg/backgrounds/background1.jpg'; break;
}

}