function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		home_btn_over = newImage("http://www.avocetproperties.net/images/home_btn-over.jpg");
		about_btn_over = newImage("http://www.avocetproperties.net/images/about_btn-over.jpg");
		lifestyle_btn_over = newImage("http://www.avocetproperties.net/images/lifestyle_btn-over.jpg");
		vacation_btn_over = newImage("http://www.avocetproperties.net/images/vacation_btn-over.jpg");
		realestate_btn_over = newImage("http://www.avocetproperties.net/images/realestate_btn-over.jpg");
		contact_btn_over = newImage("http://www.avocetproperties.net/images/contact_btn-over.jpg");
		preloadFlag = true;
	}
}