function showImage() {
var end_num = 13
var this_num = Math.floor(Math.random() * end_num + 1)

var preBuffer = new Image()
preBuffer.src = '/images/random_images/' + this_num + '.jpg'
	if (document.getElementById("right_mod_bg")) document.getElementById("right_mod_bg").className = 'img' + this_num
}


function showImage1() {
var end_num = 2
var this_num = Math.floor(Math.random() * end_num + 1)

var preBuffer = new Image()
preBuffer.src = '/images/site/home' + this_num + '.png'
	if (document.getElementById("image_holder")) document.getElementById("image_holder").className = 'graph' + this_num
}