diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index fe8397b8816..be5a1283d73 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -1718,7 +1718,7 @@ function dol_syslog($message, $level = LOG_INFO, $ident = 0, $suffixinfilename =
  *	@param	string	$name				A name for the html component
  *	@param	string	$label 	    		Label shown in Popup title top bar
  *	@param  string	$buttonstring  		button string
- *	@param  string	$url				Relative Url to open
+ *	@param  string	$url				Relative Url to open. For example '/project/card.php'
  *  @param	string	$disabled			Disabled text
  *  @param	string	$morecss			More CSS
  *  @param	string	$backtopagejsfields	The back to page must be managed using javascript instead of a redirect.
@@ -1752,13 +1752,16 @@ function dolButtonToOpenUrlInDialogPopup($name, $label, $buttonstring, $url, $di
 	}
 
 	//print '<input type="submit" class="button bordertransp"'.$disabled.' value="'.dol_escape_htmltag($langs->trans("MediaFiles")).'" name="file_manager">';
-	$out .= '<!-- a link for button to open url into a dialog popup backtopagejsfields = '.$backtopagejsfields.' -->';
+	$out .= '<!-- a link for button to open url into a dialog popup with backtopagejsfields = '.$backtopagejsfields.' -->';
 	$out .= '<a class="cursorpointer classlink button_'.$name.($morecss ? ' '.$morecss : '').'"'.$disabled.' title="'.dol_escape_htmltag($label).'"';
 	if (empty($conf->use_javascript_ajax)) {
 		$out .= ' href="'.DOL_URL_ROOT.$url.'" target="_blank"';
 	}
 	$out .= '>'.$buttonstring.'</a>';
+
 	if (!empty($conf->use_javascript_ajax)) {
+		// Add code to open url using the popup. Add also hidden field to retreive the returned variables
+		$out .= '<!-- code to open popup and variables to retreive returned variables -->';
 		$out .= '<div id="idfordialog'.$name.'" class="hidden">div for dialog</div>';
 		$out .= '<div id="varforreturndialogid'.$name.'" class="hidden">div for returned id</div>';
 		$out .= '<div id="varforreturndialoglabel'.$name.'" class="hidden">div for returned label</div>';
diff --git a/htdocs/societe/card.php b/htdocs/societe/card.php
index e18f6987a33..b8443a065ff 100644
--- a/htdocs/societe/card.php
+++ b/htdocs/societe/card.php
@@ -1341,6 +1341,7 @@ if (is_object($objcanvas) && $objcanvas->displayCanvasExists($action)) {
 		print '<input type="hidden" name="token" value="'.newToken().'">';
 		print '<input type="hidden" name="backtopage" value="'.$backtopage.'">';
 		print '<input type="hidden" name="backtopagejsfields" value="'.$backtopagejsfields.'">';
+		print '<input type="hidden" name="dol_openinpopup" value="'.$dol_openinpopup.'">';
 		print '<input type="hidden" name="private" value='.$object->particulier.'>';
 		print '<input type="hidden" name="type" value='.GETPOST("type", 'alpha').'>';
 		print '<input type="hidden" name="LastName" value="'.$langs->trans('ThirdPartyName').' / '.$langs->trans('LastName').'">';