divTwo = document.getElementById('zone2div');
myBodyElements = divTwo.getElementsByTagName("span");

for (var i = 0; i < myBodyElements.length; i++) {
            if (myBodyElements[i].id.indexOf("lblquitDate") != -1) {
            
                     spanQuit = document.getElementById(myBodyElements[i].id);                     
                     spanQuit.style.display = "none";   
               
            }
        }