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) {
		database_login_04_over = newImage("images/database_login_04-over.gif");
		database_login_05_over = newImage("images/database_login_05-over.gif");
		database_login_06_over = newImage("images/database_login_06-over.gif");
		database_login_07_over = newImage("images/database_login_07-over.gif");
		database_login_08_over = newImage("images/database_login_08-over.gif");
		database_login_09_over = newImage("images/database_login_09-over.gif");
		database_login_10_over = newImage("images/database_login_10-over.gif");
		database_login_18_over = newImage("images/database_login_18-over.gif");
		database_login_19_over = newImage("images/database_login_19-over.gif");
		database_login_20_over = newImage("images/database_login_20-over.gif");
		database_login_21_over = newImage("images/database_login_21-over.gif");
		database_login_22_over = newImage("images/database_login_22-over.gif");
		preloadFlag = true;
	}
}