var noBlock = true;

function BtnBlock(o)
{
	n = noBlock;
	noBlock = false;
	o.value = "Bitte warten";
	return n;
}

function PopupWindow( url, name, width, height )
{
    var top = (screen.height - height) / 2;
    var left = (screen.width - width) / 2;
	var features = 'height=' + height + ',width=' + width + ',top=' + top + ',left=' + left + ',location=0,menubar=0,resizable=1,scrollbars=1,status=1,titlebar=0,toolbar=0';
	var win = window.open( url, name, features, false );
	win.focus();
}

function PopupWindowFix( url, name, width, height )
{
    var top = (screen.height - height) / 2;
    var left = (screen.width - width) / 2;
	var features = 'height=' + height + ',width=' + width + ',top=' + top + ',left=' + left + ',location=0,menubar=0,resizable=0,scrollbars=1,status=0,titlebar=0,toolbar=0';
	var win = window.open( url, name, features, false );
	win.focus();
}