function show(id) {
  document.getElementById(id).style.visibility='visible';
  if (navigator.appVersion.substring(0,1) != 4) {
  	document.getElementById(id).style.margin='0px 0px 0px 170px';
  }
}
function show2(id) {
  document.getElementById(id).style.visibility='visible';
  if (navigator.appVersion.substring(0,1) != 4) {
  	document.getElementById(id).style.margin='0px 0px 0px 165px';
  }

}
function hide(id) {
  document.getElementById(id).style.visibility='hidden';
}