function ShowLoader()
{	
	// Mainframe ausblenden
	document.getElementById('mainframediv').style.visibility = 'hidden';
	
	// Frame anzeigen
	document.getElementById('loadingFrame').style.visibility = 'visible';
	
	return false;
}

function HideLoader()
{
	// Frame ausblenden
	document.getElementById('loadingFrame').style.visibility = 'hidden';
}