self.focus() ;

var a = "0" ;

function druckversion ()
{
    if (a == 0)
    {
        F1 = window.open(parent.frames[1].location, "Druckfenster", "width=650, height=480, menubar=yes, scrollbars=yes") ;
        a = 1 ;
    }
    else
    {
        if (F1.closed == true)
        {
            F1 = window.open(parent.frames[1].location, "Druckfenster", "width=650, height=480, menubar=yes, scrollbars=yes") ;
            a = 1 ;
        }
        else
        {
            F1.focus() ;
        }
    }
}