Check if Sharepoint Richt Text Editor Field is empty or not (works in IE, Firefox and Chrome)

Found out this week that the code for checking the content of a multi-line rich text field was 
not working for other than IE-browsers.
So after some debugging in Chrome I found a solution that works in Chrome and in Firefox.
I hope that it's also working in other browsers... but I don't have them to my position at work.
Have fun with my new code... 

 firefox/chrome bugfix...
    var scomments = "";
    if ($.browser.msie) 
 {     
  // IE browser, check on language needed because Sharepoint and IE Translates the IFrame name in different languages.   
  if (_spPageContextInfo.currentLanguage == 1036) 
  {
            var systemDescriptionRTE = $("textarea[title='Comments']").closest("span").find("iframe[Title='Éditeur de texte enrichi']").contents().find("body");
            scomments = $(systemDescriptionRTE).text();
        }
        else
        {
            if (_spPageContextInfo.currentLanguage == 1043) 
   {
                var systemDescriptionRTE = $("textarea[title='Comments']").closest("span").find("iframe[Title='RTF-editor']").contents().find("body");
                scomments = $(systemDescriptionRTE).text();
            }
            else
            {
                var systemDescriptionRTE = $("textarea[title='Comments']").closest("span").find("iframe[Title='Rich Text Editor']").contents().find("body");
                scomments = $(systemDescriptionRTE).text();
            }
        }
 }
 else
 {
 // if other browser
        var systemDescriptionRTETextArea = $("textarea[Title='Comments']"); 
        scomments = $(systemDescriptionRTETextArea).val(); 
 }
  

Now you can check with the 'scomments' variable is it is empty or containing some values.