function checkClick() {
	document.getElementById('divID').style.display = 'none';
}

function centerDiv()
{
	if (typeof(document) != 'undefined')
	{
		var w = document.body.clientWidth;
		var h = document.body.clientHeight;
		var did = document.getElementById('divID');
		did.style.left = (w / 2) - (450 / 2) + 'px';
		did.style.top = (h / 2) - (550 / 2) + 'px';
		did.style.display = 'block';
	}
}