window.onload = function(){ 
pickimage ();
}

var backgroundSrcs = new Array("../images/banner_outdoor1.jpg","../images/banner_outdoor2.jpg","../images/banner_outdoor3.jpg","../images/banner_outdoor4.jpg","../images/banner_outdoor5.jpg","../images/banner_outdoor6.jpg")

	function pickimage() {
		var bgimage=backgroundSrcs[(Math.round(Math.random()*(backgroundSrcs.length-1)))]

		document.getElementById("body").style.backgroundImage = "url('" + bgimage + "')";
	}