function disableSelection(target){
if(typeof target.onselectstart!="undefined")
target.onselectstart=function(){return false}
else if(typeof target.style.MozUserSelect!="undefined")
target.style.MozUserSelect="none"
else
target.onmousedown=function(){return false}
target.style.cursor="default"}

function updateClock ( )
{
  var currentTime = new Date ( );
  var currentHours = currentTime.getHours ( );
  var currentMinutes = currentTime.getMinutes ( );
  var currentSeconds = currentTime.getSeconds ( );
  currentMinutes = ( currentMinutes < 10 ? "0" : "" ) + currentMinutes;
  currentSeconds = ( currentSeconds < 10 ? "0" : "" ) + currentSeconds;
  var timeOfDay = ( currentHours < 12 ) ? "AM" : "PM";
  currentHours = ( currentHours > 12 ) ? currentHours - 12 : currentHours;
  currentHours = ( currentHours == 0 ) ? 12 : currentHours;
  var currentTimeString = currentHours + ":" + currentMinutes + ":" + currentSeconds + " " + timeOfDay;
  document.getElementById("clock").firstChild.nodeValue = currentTimeString;
}