function roll(img_name, img_src) {
   document[img_name].src = img_src;
}
function setCharAt(s,i,c) {
	if(i > s.length-1) return s;
	return s.substr(0,i) + c + s.substr(i+1);
}
function setHTML(divname, h) {
	if (!$ID(divname)) return;
	$ID(divname).innerHTML=h;
}
function d(s) { s=unescape(s); return s.replace(/\+/g, " "); }
function doBRs(s) { s=s.replace(/\n/g, ""); return s.replace(/<br>/g, "\n"); }
function $ID(id) { return document.getElementById(id); }
function cd() {	return document.createElement("div"); }
function n(s) { s=d(s); return s.replace(/ /g, "_"); }
function empty(d) {
	if (!d) return;
	while(d.hasChildNodes()) d.removeChild(d.firstChild);
}

function gaSSDSLoad (acct, userType) {
  var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."),
      pageTracker,
      s;
  s = document.createElement('script');
  s.src = gaJsHost + 'google-analytics.com/ga.js';
  s.type = 'text/javascript';
  s.onloadDone = false;
  function init () {
    pageTracker = _gat._getTracker(acct);
    pageTracker._trackPageview();
    if(typeof userType !== 'undefined' && userType.length > 0) {
    	pageTracker._setVar(userType);
    }
  }
  s.onload = function () {
    s.onloadDone = true;
    init();
  };
  s.onreadystatechange = function() {
    if (('loaded' === s.readyState || 'complete' === s.readyState) && !s.onloadDone) {
      s.onloadDone = true;
      init();
    }
  };
  document.getElementsByTagName('head')[0].appendChild(s);
}