function ooso(obr,ate) {

    //Firefox 1.0+
    if(navigator.userAgent.indexOf("Firefox")!=-1){
        var versionindex=navigator.userAgent.indexOf("Firefox")+8
        if (parseInt(navigator.userAgent.charAt(versionindex))>=1){
            broww = 6;
            browh = 54;
        }
    }
    //IE 5.5+
    version=0 
    if (navigator.appVersion.indexOf("MSIE")!=-1){
        temp=navigator.appVersion.split("MSIE")
        version=parseFloat(temp[1])
    }
    if (version>=5.5){
        broww = 10;
        browh = 36;
    }
    //Opera
    if(navigator.userAgent.indexOf("Opera")!=-1){
        var versionindex=navigator.userAgent.indexOf("Opera")+6
        if (parseInt(navigator.userAgent.charAt(versionindex))>=8){
            broww = 10;
            browh = 49;
        }
    }
     
    sso =  "<script language=javascript type=text/javascript> ";
    sso += "function zmena() { ";
    sso += "var x = document.images[0].width + "+broww+"; ";
    sso += "var y = document.images[0].height + "+browh+"; ";
    sso += "if (x > screen.availWidth) x = screen.availWidth; ";
    sso += "if (y > screen.availHeight) y = screen.availHeight; ";
    sso += "window.resizeTo(x,y); ";
    sso += "window.focus(); ";
    sso += " } </script> ";
    sso += "<body onLoad=zmena();> ";
    sso += "<img src='"+obr+"' ";
    sso += "style='position:absolute;top:0;left:0' ";
    sso += "onclick='self.close()' ";
    sso += "alt='"+ate+"'>";
    okno = window.open("","p",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,width=1,height=1, resizable=0');
    if(typeof(okno) == false) return false;
    okno.document.open();
    okno.document.write(sso);
    okno.document.close();
    return true
  }
  
  
