// Random homepage image
var theImages = new Array()

theImages[0] = 'lib/images/hmimg_1.jpg'
theImages[1] = 'lib/images/hmimg_2.jpg'
theImages[2] = 'lib/images/hmimg_3.jpg'
theImages[3] = 'lib/images/hmimg_4.jpg'
theImages[4] = 'lib/images/hmimg_5.jpg'
theImages[5] = 'lib/images/hmimg_6.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]+'">');
}

/* show/hide */
function HideContent(d) {
var elm=document.getElementById(d);
if(elm)elm.style.display = "none";
}
function ShowContent(d) {
var elm=document.getElementById(d);
if(elm)elm.style.display = "block";
}
function ReverseContentDisplay(d) {
var elm=document.getElementById(d);
if(elm)elm.style.display=(elm.style.display=="none")?"block":"none";
}