function PlaceSmily(strSmily) {
    var txtBox = document.getElementById('contenthtml');
    var theValue = txtBox.value;
    txtBox.value = theValue + ':' + strSmily + ':';
}

function PlaceYouTube() {
    var txtBox = document.getElementById('contenthtml');
    var theValue = prompt("Want to add a YouTube video to your post?\n\nJust copy and paste the URL of the YouTube page below and click OK :)", "")
    if (theValue != null) {
        txtBox.value = txtBox.value + '<youtube>' + theValue + '</youtube>';
    }
}

function PlaceImage() {
    var txtBox = document.getElementById('contenthtml');
    var theValue = prompt("Want to add an image to your post?\n\nJust copy and paste the URL of the image below, then click OK :)", "")
    if (theValue != null) {
        txtBox.value = txtBox.value + '[img]' + theValue + '[/img]';
    }
}