/* This function preloads nav images on the main pages */

var myimages=new Array()
function preload(){
for (i=0;i<preload.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src=preload.arguments[i]
}
}

/* This function allows for a configurable confirm submit box to appear */

function confirmSubmit(message)
{
var agree=confirm(message);
if (agree)
	return true ;
else
	return false ;
}

/* This function makes a window pop up */

function popIt(w,h,scroll) {

var NS4 = (document.layers);
var IE4 = (document.all);

if (IE4) {
	var left = (screen.width - w)/2;
	var top = (screen.height - h - 100 )/2;	
}
else {
	left = 10;
	top = 30;
}

if (IE4) {
	var n = window.open('about:blank','formwin','scrollbars='+scroll+',width='+w+',height='+h+',left='+left+',top='+top+',titlebar=0,windowbar=0,status=1,resizable');
}
else {
	var n = window.open('about:blank','formwin','scrollbars='+scroll+',width='+w+',height='+h+',screenX='+left+',screenY='+top+',titlebar=0,windowbar=0,status=1,resizable');
}

if (parseInt(navigator.appVersion) >= 4) { n.window.focus(); }

return true;
}

/* This function pops up an alert for unauthorised access to admin functions */

function unauth() {
alert('Your login privileges prevent\naccess to this function')
return false;
}