ajaxfilemanager selecting image by doubleclick problem

Question

Hello, I am using ajaxfilemanager and when I select an image by doubleclicking on it, the selectFile function from form.js is called twice. My selectFile function is:

function selectFile(url)
{
     url = url.replace(window.location.protocol + "//" + window.location.hostname +"/", "");
     window.opener.addImageToList(elementId, url);
     window.close() ;
}

Do you know how can i fix this problem?

Thank you.