var cssLinkId = "5sc_css";
var cssFile = "./css/5scIE6.css";

if (getIEVersionNumber() == 6) {
  document.getElementById(cssLinkId).href = cssFile;
}

function getIEVersionNumber() {
  var ua = navigator.userAgent;
  var MSIEOffset = ua.indexOf("MSIE ");
  if (MSIEOffset == -1) {
    return 0;
  }
  else {
    return parseFloat(ua.substring(MSIEOffset + 5, ua.indexOf(";", MSIEOffset)));
  }
}