function isBubbleDockInstalled() {
	    if((navigator.userAgent.indexOf('Safari')!=-1) || (navigator.userAgent.indexOf('Opera')!=-1)) return false;	   
	    if( !((navigator.userAgent.indexOf('Win')!= -1) && (navigator.userAgent.indexOf('MSIE')!=-1) && (parseInt(navigator.appVersion,10) >= 4)) ) {
	    		if  ( typeof(navigator.mimeTypes["application/x-bubbledock"]) == "object")  {
	    			return true;
	    		} else {
	    			return false;
	    	  }	        
	    } else {
	    	  try{
					var axo = new ActiveXObject("Livesticker.Infos");
					axo.productName = "Bubble Dock";
			    return (axo.version != "");
  				}catch (e){
   						return false;
   				}
	    }
    return false;
}