function stoperror()
{
return true
}
window.onerror=stoperror

function OnTopWindow(DaURL,name,groesse) 
{
        var popupfenster;
        popupfenster = window.open(DaURL,name,groesse);
        if (parseInt(navigator.appVersion) >= 3)
		{
        popupfenster.focus();
        }
}