h1.hidden {
  display: none;
}<script language="JavaScript">
<!--
  
function random_imglink(){
var myimages=new Array()
myimages[1]="http://BATHTUB_GIFF_2_AdobeExpress.gif"
myimages[2]="http://CHURCH_GIFF_1_AdobeExpress.gif"
myimages[3]="http://CHIURCH_HEAD_GIFF_1_AdobeExpress.gif"
myimages[4]="http://Jackie_GIFF_AdobeExpress.gif"
var ry=Math.floor(Math.random()*myimages.length)
if (ry==0)
ry=1
document.write('<img src="'+myimages[ry]+'" border=0>')
}
random_imglink()
//-->
</script>