‘<div onclick= “show_ajax_next(4,5,'’.$ajax.’','’.$form_id.’');”>’ . t(”) . ‘</div>’
in short –'’.$ajax.’'–;
In place of “‘” (single quote) use ‘'’
‘<div onclick= “show_ajax_next(4,5,'’.$ajax.’','’.$form_id.’');”>’ . t(”) . ‘</div>’
in short –'’.$ajax.’'–;
In place of “‘” (single quote) use ‘'’