$(document).ready(function() {
    var message = '';
    var isError = false;

    $('input#submit').click(function() {
        message = '';
        isError = false;

        if ($('input[name=from]').val() == '') {
            message += 'From email is required.\n';
            isError = true;
            $('span#emailErr').css('visibility', 'visible');
            $('span#emailErr').css('color', '#FF7200');
            $('span#emailErr').css('padding-top', '7px');
        }
        if ($('input[name=name]').val() == '') {
            message += 'Name is required.\n';
            isError = true;
            $('span#nameErr').css('visibility', 'visible');
            $('span#nameErr').css('color', '#FF7200');
            $('span#nameErr').css('padding-top', '7px');
        }
        if ($('input[name=position]').val() == '') {
            message += 'Position is required.\n';
            isError = true;
            $('span#positionErr').css('visibility', 'visible');
            $('span#positionErr').css('color', '#FF7200');
            $('span#positionErr').css('padding-top', '7px');
        }
        if ($('textarea[name=message]').val() == '') {
            message += 'Message is required.\n';
            isError = true;
            $('span#messageErr').css('visibility', 'visible');
            $('span#messageErr').css('color', '#FF7200');
            $('span#messageErr').css('padding-top', '7px');
        }
        if ($('input[name=fileatt]').val() == '') {
            message += 'Upload file is required.\n';
            isError = true;
            $('span#fileattErr').css('visibility', 'visible');
            $('span#fileattErr').css('color', '#FF7200');
            $('span#fileattErr').css('padding-top', '7px');
        }
        if (isError) {
            alert(message);
            return false;
        }
    });
});