diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 9753f4b3d83..be964015f75 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1744,6 +1744,14 @@ function top_htmlhead($head, $title = '', $disablejs = 0, $disablehead = 0, $arr
 				}
 			}
 		}
+		
+		//If you want to load custom javascript file from your selected theme directory
+		if (!empty($conf->global->ALLOW_THEME_JS)) { 
+			$theme_js = dol_buildpath('/theme/'.$conf->theme.'/'.$conf->theme.'.js', 0);
+			if (file_exists($theme_js)) {
+				print '<script src="'.DOL_URL_ROOT.'/theme/'.$conf->theme.'/'.$conf->theme.'.js'.($ext ? '?'.$ext : '').'"></script>'."\n";
+			}
+		}
 
 		if (!empty($head)) {
 			print $head."\n";