var theImages = new Array()
theImages[0] = 'griangraf/header1.jpg'
theImages[1] = 'griangraf/header2.jpg'
theImages[2] = 'griangraf/header3.jpg'
theImages[3] = 'griangraf/header4.gif'
theImages[2] = 'griangraf/header5.jpg'

var j = 0
var p = theImages.length;

var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}

var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'">');
}


function nrcIE(){
if (document.all){return false;}}
function nrcNS(e){
if(document.layers||(document.getElementById&&!document.all)){
if (e.which==2||e.which==3){
return false;}}}
if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=nrcNS;
}else{document.onmouseup=nrcNS;document.oncontextmenu=nrcIE;}
document.oncontextmenu=new Function("return false");