// JavaScript Document
function changeBG(elementID) {
	var bgImages = new Array (
			"/images/headers/1_header.jpg",
			"/images/headers/2_header.jpg",
			"/images/headers/3_header.jpg",
			"/images/headers/4_header.jpg",
			"/images/headers/5_header.jpg",
			"/images/headers/6_header.jpg",
			"/images/headers/7_header.jpg",
			"/images/headers/8_header.jpg",
			"/images/headers/9_header.jpg",
			"/images/headers/11_header.jpg",
			"/images/headers/12_header.jpg",
			"/images/headers/13_header.jpg",
			"/images/headers/14_header.jpg",
			"/images/headers/15_header.jpg",
			"/images/headers/16_header.jpg",
			"/images/headers/17_header.jpg",
			"/images/headers/18_header.jpg",
			"/images/headers/19_header.jpg",
			"/images/headers/20_header.jpg",
			"/images/headers/21_header.jpg",
			"/images/headers/22_header.jpg",
			"/images/headers/23_header.jpg",
			"/images/headers/24_header.jpg",
			"/images/headers/25_header.jpg",
			"/images/headers/26_header.jpg",
			"/images/headers/27_header.jpg",
			"/images/headers/28_header.jpg",
			"/images/headers/29_header.jpg",
			"/images/headers/30_header.jpg",
			"/images/headers/31_header.jpg",
			"/images/headers/32_header.jpg",
			"/images/headers/33_header.jpg",
			"/images/headers/34_header.jpg",
			"/images/headers/35_header.jpg",
			"/images/headers/36_header.jpg",
			"/images/headers/37_header.jpg",
			"/images/headers/38_header.jpg",
			"/images/headers/39_header.jpg",
			"/images/headers/40_header.jpg",
			"/images/headers/41_header.jpg",
			"/images/headers/42_header.jpg",
			"/images/headers/43_header.jpg",
			"/images/headers/44_header.jpg",
			"/images/headers/45_header.jpg",
			"/images/headers/46_header.jpg",
			"/images/headers/47_header.jpg"
			);
		
	element = document.getElementById(elementID);
	if (element) {
		element.style.background = "url(" + bgImages[Math.floor(Math.random()*bgImages.length)] + ")";
	} else {}
}