function randomBackgrounds() {
	var randomnumber = Math.floor(Math.random() *10) + 1;
	document.getElementById("leftbg_random").style.backgroundImage = "url(http://www.brucekirkby.com/images/stories/home_rotation/home_left_bg_" + randomnumber + ".jpg)";
	document.getElementById("middlebg_random").style.backgroundImage = "url(http://www.brucekirkby.com/images/stories/home_rotation/home_photo_bg_" + randomnumber + ".jpg)";
	document.getElementById("rightbg_random").style.backgroundImage = "url(http://www.brucekirkby.com/images/stories/home_rotation/home_right_bg_" + randomnumber + ".jpg)";
}