function openDarkBKG() {
	if ( navigator.appVersion.indexOf("MSIE 6") >= 0 ) {
		//alert( "Internet Explorer 6" );
		return true;
	} else {
		document.getElementById( "darkbkg" ).style.display = "block";
		return false;
	}
}
		
function closeDarkBKG() {
	document.getElementById( "darkbkg" ).style.display = "none";
}