libraries/ManiaLib/Gui/Element.php
function setImage($image, $absoluteUrl = false)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        if (!$absoluteUrl) {
            $this->image = Manialink::$imagesURL . $image;
        } else {
            $this->image = $image;
        }
    }
function setImage($image, $absoluteUrl = false)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        if (!$absoluteUrl) {
            $this->image = Manialink::$imagesURL . $image;
        } else {
            $this->image = $image;
        }
    }
Applies an image to the element
@param string The image filename (or URL)
@param bool Whether to prefix the filename with the default images dir URL