function assistentWindow(screenurl) {
	window.open(screenurl, 'assistentWindow', 'resizable=yes,dependent=yes,scrollbars=no,status=yes,width=800,height=410,screenX='+((screen.availWidth-610)/2)+',left='+((screen.availWidth-610)/2)+',screenY='+((screen.availHeight-380)/2)+',top='+((screen.availHeight-380)/2));
	return false;
}

function setBannerMode(mode) {
	document.getElementById('txtBanner').style.display = (mode ? 'none' : 'inline');
	document.getElementById('txtBannerFile').style.display = (mode ? 'inline' : 'none');
	if ( !MSIE ) document.getElementById('labBanner').setAttribute('for', mode ? 'txtBannerFile' : 'txtBanner');
}