function prepocet(vstup, velikost){
            var vystup = 0;
            var vstupMark   = vstup.substring(0,1);

            if(velikost == "mala" ){
                vystup  = vstupMark == "B" ? 140 :  160;
            }else{
                vystup  = vstupMark == "B" ? 230 :  270;
            }
            
            $("#cenamotivu").html (vystup + " Kč");
        }    
        $(document).ready(function(){
            var ua  = navigator.userAgent,
            event   = (ua.match(/iPad/i)) ? "touchstart" : "click";
            $("#cenamotivu").html ( 140+ " Kč");
            $(".colorSet").bind(event, function(event){
                var barva  = $("input:radio[name=color]:checked").val();
                var velikost  = $("input:radio[name=size]:checked").val();
                $("input:radio[name=color]").bind(event, prepocet( barva, velikost )) ;
            });
            $(".motivRotSet").bind(event, function(event){
                var barva  = $("input:radio[name=color]:checked").val();
                var velikost  = $("input:radio[name=size]:checked").val();
                $("input:radio[name=size]").bind(event, prepocet( barva, velikost )) ;
            });
        });