var sb = '0';
var num = 0;

function randomVar(maxValue) { var num = 0; var day = new Date(); var a = day.getTime(); var b = (a - (parseInt(a/1000) * 1000))/10; var c = parseInt ( (b*100) - (Math.floor(b)*100) ) ; var d = parseInt(c / 100 * maxValue) + 1; if (isNaN(c)) { num = 0; } else { num = d; } return num; }
function loadImage() {sb = randomVar(8);}

function reloadImage() {document.images['facts'].src = 'images/sb'+num+'.gif';}