function CalCalories() {
    var Weight = document.getElementById("CaloriesWeight").value;
    var Distance = document.getElementById("CaloriesDistance").value;
    var DistanceType = document.getElementById("CaloriesDistanceType").value;
    if (isNaN(Weight) || isNaN(Distance) || Weight < 40 || Weight > 250 ) {
        document.getElementById("CaloriesError").innerHTML = "من فضلك أدخل ارقام صحيحة";        
        return;
    }
    
    if (DistanceType == "Kmg")
        Distance = Distance / 1.61

    if (DistanceType == "m")
        Distance = Distance / 1609.35
    
    
    var CaloriesResult = (Weight * Distance) * .653;

    var Commant = "";
    if (CaloriesResult < 100) {
                    Commant = "تحتاج الى جري اكثر";
                }
                else if (CaloriesResult >= 101 && CaloriesResult < 200) {
                    Commant = "جيد نوعا ما";
                }
                if (CaloriesResult >= 201 && CaloriesResult < 300) {
                    Commant = "ممتاز";
                }
                else if (CaloriesResult >= 301 && CaloriesResult < 500) {
                    Commant = "رائع";
                }
                else if (CaloriesResult >= 501 && CaloriesResult < 700) {
                    Commant = "عمل عظيم جدا";
                }
                else if (CaloriesResult >= 701) {
                    Commant = "بكل صراحة انت بطل";
                }
    document.getElementById("CaloriesError").innerHTML = "";
    document.getElementById("CaloriesResult").innerHTML = CaloriesResult + " " + Commant;
    
}