var triggers = $(".modal-trigger").overlay({

    // some mask tweaks suitable for modal dialogs
    mask: {
        color: '#272728',
        loadSpeed: 200,
        opacity: 0.9
    },

    closeOnClick: true
});
                    
$(function() {  
    $(".error").hide();  
    $(".submit").click(function() {  
        // validate and process form here  
      
        $(".error").hide();
        var answer = $("input#answer").val();
        if (answer == "") { 
            $("label#answer_error").show(); 
            return false;  
        }  
        var name = $("input#name").val();  
        if (name == "") {  
            $("label#name_error").show();  
            $("input#name").focus();  
            return false;  
        }  
        var number = $("input#number").val();  
        if (number == "") {  
            $("label#number_error").show();  
            $("input#number").focus();  
            return false;  
        }
        var email = $("input#email").val();  
        if (email == "") {  
            $("label#email_error").show();  
            $("input#email").focus();  
            return false;  
        }
                            
        var dataString = 'name='+ encode(name) + '&number=' + encode(number) + '&email=' + encode(email) + '&answer=' + encode(answer);
		
        $.ajax({
            type: "POST",
            url: "competition.php",
            data: dataString,
            success: function(response) {
                $("#comp").html(response);
            }
        });
        return false;
    });  
});