rodrigopedra

<?

if (check_file_type() && filesize($_FILES['file']['tmp_name']) < 2000000) {
	submit();
} else {
	display_form('Invalid file type, please upload files in Microsoft Word, OpenOffice or Adobe PDF format and keep them less than 2MB. If you are having trouble, please upload your document as RTF (Rich Text Format)');
}

rodrigopedra

/**
 * Luhn algorithm in JavaScript: validate credit card number supplied as string of numbers
 * @author ShirtlessKirk. Copyright (c) 2012.
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
var luhnChk = (function (arr) {
    return function (ccNum) {
        var 
            len = ccNum.length,
            bit = 1,