function showRandom() {
	var images = new Array();
	images[0] ="/images/bc_lrgimg01.jpg";
	images[1] ="/images/bc_lrgimg02.jpg";
	images[2] ="/images/bc_lrgimg03.jpg";
	var rdm = Math.floor(Math.random()*images.length);
	document.getElementById("body-head").style.background="url("+images[rdm]+") top left no-repeat";
}

function showRandom1() {
	var images = new Array();
	images[0] ="/images/bc_test01.jpg";
	images[1] ="/images/bc_test02.jpg";
	var rdm = Math.floor(Math.random()*images.length);
	document.getElementById("content-left").style.background="url("+images[rdm]+") top left no-repeat";
}