var theImages = new Array() 

theImages[0] = 'images/1.jpg'
theImages[1] = 'images/2.jpg'
theImages[2] = 'images/3.jpg'
theImages[3] = 'images/4.jpg'
theImages[4] = 'images/5.jpg'
theImages[5] = 'images/6.jpg'
theImages[6] = 'images/7.jpg'
theImages[7] = 'images/8.jpg'
theImages[8] = 'images/9.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('<a href="index.htm"><img src="'+theImages[whichImage]+'" border="0" alt="UHG logo" height="125" width="993"></a>');
}


function HideContent(d) {
document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
document.getElementById(d).style.display = "block";
}
function ReverseDisplay(d) {
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}