i=0; letter=''; 

function Start(message){

if (i!=message.length){
        window.status=letter;
        letter+=message.charAt(i++);
        SleepFXTimer=setTimeout("Start('" + message + "')",10);
        }
if (i==message.length){
        letter+=message.charAt(i);
        window.status=letter;
      clearTimeout(SleepFXTimer);
        i=0; letter='';
        }
}

function Stop(){
         clearTimeout(SleepFXTimer); i=0; letter='';
         window.status="";
}