if (document.images) {
    roll10 = new Image();
    roll10.src  = "/specialy/sileni/obr/roll10.gif";
    roll11 = new Image();
    roll11.src = "/specialy/sileni/obr/roll11.gif";
    
    roll21 = new Image();
    roll21.src  = "/specialy/sileni/obr/roll21.gif";
    
    roll31 = new Image();
    roll31.src  = "/specialy/sileni/obr/roll31.gif";
    
    roll41 = new Image();
    roll41.src  = "/specialy/sileni/obr/roll41.gif";
    
    roll51 = new Image();
    roll51.src  = "/specialy/sileni/obr/roll51.gif";
    
    roll61 = new Image();
    roll61.src  = "/specialy/sileni/obr/roll61.gif";
    
    
    }

function change(Name,Image,No) {
    if (!document.images) {}
    else document [Name].src = eval(Image + No + ".src"); 
    }