if (document.images){

             menu_e_0 = new Image(60,60);
             menu_e_0.src = "ema.gif";
             menu_e_1 = new Image(60,60);
             menu_e_1.src = "ema(-).gif";

}

     function giFlip(imgName, mouseMov){
       if (document.images){

         if (mouseMov == "over"){
            document [imgName].src = eval("menu_" + imgName + "_1.src");
         }

         if (mouseMov == "out"){
            document [imgName].src = eval("menu_" + imgName + "_0.src");
         }
       }
     }