.topdiv
{
    overflow: hidden;
    display: none;
    position: fixed;
    z-index: 1002;
    outline-color: -moz-use-text-color;
    outline-style: none;
    outline-width: 0px;
    height: 120px;
    width: 600px;
	margin: auto;
}
.alertDiv
{
	overflow: hidden;
	display: none;
	position: fixed;
	z-index: 1002;
	outline-color: -moz-use-text-color;
	outline-style: none;
	outline-width: 0px;
	height: 100px;
	width: 400px;
	margin: auto;
}