var win;
var title = "default";

function openWin(dateiname){

    if(win != null){
        win.close();
    }

	 win = window.open(dateiname, "_blank", "width=820, height=600, left=0, top=0");
    win.focus();
}


function openWinHoch(dateiname){

    if(win != null){
        win.close();
    }

	 win = window.open(dateiname, "_blank", "width=500, height=700, left=0, top=0");
    win.focus();
}



function openWinText(dateiname){

    if(win != null){
        win.close();
    }
    
    win = window.open(dateiname, "_blank", "width=820, height=600, left=0, top=0, scrollbars=yes");
    win.title = title;
    win.focus();
}