function checkFoul(box) {
    var tmp;
    var words = 'shit|fuck| ass |cunt|motherfucker|asshole|nigger|nigga|shithead|bullshit|bitch| cock |fucker| twat|cocksucker| tits |merde|nigger| spick | spic | jap |kike|gook|blowjob|chinc| cooter|dipshit|douchebag|faggot|whore|dumbass|dumbfuck|faggit|jigaboo|nigga|niglet|peckerhead| pussy |sandnigger|towelhead|skank|f-uck';

    tmp = new RegExp(words, 'i');
    if (document.getElementById(box).value.match(tmp)) {
        document.getElementById('warning').innerHTML = "<b>Please do not use profanity in your comments, you will not be able to submit until it has been removed.</b>";
        document.getElementById('post_comment').disabled = true;
    } else {
        document.getElementById('warning').innerHTML = '';
        document.getElementById('post_comment').disabled = false;
    }
}