function openBot(sc, entry, fb){
                                var uid = new Date().getTime() + Math.floor(Math.random()*100);
                                var url = "http://directline.creativevirtual.com/Directline/bot.htm?uid=" +uid;
                                
 
                                (sc!="") ? url += "&StartContext=" + escape(sc) : "";
                                (entry!="") ? url += "&entry=" + escape(entry) : "";
                                (fb==true) ? url += "&fb=1" : "";
 
                                window.open(url,'BOT','width=546,height=536')
}