var image_list = [

	// <image path>

	'/rsc/img/ci/hp_random1_pic01.jpg',
	'/rsc/img/ci/hp_random1_pic02.jpg',
	'/rsc/img/ci/hp_random1_pic03.jpg',
	'/rsc/img/ci/hp_random1_pic04.jpg',
	'/rsc/img/ci/hp_random1_pic05.jpg'	
];

var rdm_image = Math.round(Math.random()*(image_list.length-1));

document.getElementById("subheader1_inner2").style.background = "transparent url("+image_list[rdm_image]+") no-repeat scroll left top";