How to get the second people picker in a page through javascript and to populate the current username

var tags = document.getElementsByTagName('DIV');
  var count = 0;
  for(var i=0;i<tags.length;i++)
  {
  if(tags[i].title == 'People Picker')
  {
   count = count +1;  
   if(count == 2)
   {
     SetTheCurrentUser1(tags[i].id);

   }
  }
  }
function SetTheCurrentUser1(ctrlPeoplePicker)
{
  var currentUser = "";
  currentUser = $().SPServices.SPGetCurrentUser({
  fieldName: "Name"
 });
     // alert(currentUser);
  if(currentUser != "")
{  
svSetPeoplePickerValue(ctrlPeoplePicker,currentUser);
}
}
function svSetPeoplePickerValue(strControlId, strValue)
{
var ctlUpLevel = document.getElementById(strControlId);

// Get the portion of the ID preceeding '_upLevelDiv'
// all controls' ids for the people picker start with this
var subs = ctlUpLevel.id.substring(0, ctlUpLevel.id.indexOf("_upLevelDiv"));

// Magically set the value of the People Picker (and associated fields)
var ctlDownLevel = document.getElementById(getSubControlID(subs, g_EntityEditorDownLevelId));
ctlDownLevel.value = strValue;
SetInnerText(ctlUpLevel, strValue);
copyUplevelToHidden(subs);
}
// The functions getSubControlID, SetInnerText, copyUplevelToHidden and
// the variable g_EntityEditorDownLevelId are provided by SharePoint.