libraries/ManiaLib/Gui/Element.php
function setImageid($imageid)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        $this->imageid = $imageid;
    }
function setImageid($imageid)
    {
        $this->setStyle(null);
        $this->setSubStyle(null);
        $this->imageid = $imageid;
    }
Set the image id of the element, used for internationalization