function checkBook() {	
    s = trimSpace($("#txtName").val());
    if(s.length>100 || s==""){
        alert('Please fill your fullname!');
        $("#txtName").focus();
        return false;
    }
    s = trimSpace($("#txtPhone").val());
    if(s.length>100 || s==""){
        alert('Please fill your phone number!');
        $("#txtPhone").focus();
        return false;
    }
    //    s = trimSpace($("#txtEmail").val());
    //    if(s.length>100 || s==""){
    //        alert('Please fill your email!');
    //        $("#txtEmail").focus();
    //        return false;
    //    }
    //    email = $("#txtEmail").val();
    //    if(email.length>0 && !isEmail(email)){
    //        alert('Invalid Email\nPlease Re-Enter!');
    //        $("#txtEmail").focus();
    //        return false;
    //    }
    s = trimSpace($("#drpAdults").val());
    if(s.length>100 || s==""){
        alert('Please choose Num of Adults!');
        $("#drpAdults").focus();
        return false;
    }
    s = trimSpace($("#drpChildren").val());
    if(s.length>100 || s==""){
        alert('Please choose Num of Children!');
        $("#drpChildren").focus();
        return false;
    }
    s = trimSpace($("#txtArrival").val());
    if(s.length>100 || s==""){
        alert('Please fill Arrival Date!');
        $("#txtArrival").focus();
        return false;
    }
    s = trimSpace($("#txtDeparture").val());
    if(s.length>100 || s==""){
        alert('Please fill Departure Date!');
        $("#txtDeparture").focus();
        return false;
    }
    if(!msgInfo($('#txtArrival').val(),$('#txtDeparture').val())){
        return false;
    }
    return true;
}

function msgInfo(s1,s2){
    var f=document.frmBook;
    if(trimSpace($('#txtArrival').val())!="")
    {
        if (trimSpace($('#txtDeparture').val())=="")
        {
            alert("Please fill Departure Date!");
            $('#txtDeparture').focus();
            return false;
        }
    }
    else
    {
        if (trimSpace($('#txtDeparture').val())!="")
        {
            alert("Please fill Arrival Date!");
            $('#txtArrival').focus();
            return false;
        }
    }
    if(trimSpace($('#txtArrival').val())!="" && trimSpace($('#txtDeparture').val())!="")
    {
        d = CompDateE(s1,s2);
        if(d){
            alert("Invalid Arrival & Departure Date!");
            f.txtArrival.focus();
            return false;
        }
    }
    d1 = trimSpace($('#txtArrival').val());
    d2 = trimSpace($('#hidToday').val());
    d_ = CompDateE(d2,d1);
    if(d_){
        alert("Invalid Arrival Date!");
        return false;
    }
    return true;
}