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) {
		welcome_over = newImage("images/welcome-over.gif");
		floorplans_over = newImage("images/floorplans-over.gif");
		features_over = newImage("images/features-over.gif");
		community_over = newImage("images/community-over.gif");
		surroundings_over = newImage("images/surroundings-over.gif");
		visiting_over = newImage("images/visiting-over.gif");
		aboutus_over = newImage("images/aboutus-over.gif");
		gallery_over = newImage("images/photogallery-over.gif");
		plan1_over = newImage("image/sub_fp1-over.gif");
		plan2_over = newImage("image/sub_fp2-over.gif");
		plan3_over = newImage("image/sub_fp3-over.gif");
		plan4_over = newImage("image/sub_fp4-over.gif");	

		preloadFlag = true;
	}
}