/**
* Function: addStylename
*
* Adds the specified stylename to the given style if it does not already
* contain the stylename.
*/
static function addStylename($style, $stylename)
{
if (mxUtils::indexOfStylename($style, $stylename) < 0) {
if (!isset($style)) {
$style = "";
} else {
if (strlen($style) > 0 && $style[strlen($style) - 1] != ";") {
$style .= ";";
}
}
$style .= $stylename;
}
return $style;
}
