What is a reference head

= 0? SetColor (posi, "# 0097A7", "white"): input = n.value, posi = posi + 1, setColor (posi, "# 0097A7", "white"), n.value = n.nextElementSibling .nextElementSibling.childNodes [posi] .textContent) :( setColor (posi), setColor (++ posi, "# 0097A7", "white"), n.value = n.nextElementSibling.nextElementSibling.childNodes [posi] .textContent) : i == 38? posi> = 0 && (posi> = 1? (setColor (posi), posi = posi-1, setColor (posi, "# 0097A7", "white"), n.value = n.nextElementSibling. nextElementSibling.childNodes [posi] .textContent) :( setColor (posi), setColor (posi, "# 0097A7", "white"), n.value = n.nextElementSibling.nextElementSibling.childNodes [posi] .textContent, posi = n .nextElementSibling.childElementCount-1, n.focus ())): i == 13? (posi! = - 1 && (n.nextElementSibling.childNodes [posi] .id == "0"? (n.value = "" , n.style.display = "none", document.getElementById (t) .style.display = "none", n.focus ()) :( r = n.nextElementSibling.childNodes [posi] .id, document.getElementById ("HiddenField1")! = Null && document.getElementById ("HiddenField1")! = Undefined && (document.getElementById ("HiddenField1"). Value = r), document.getElementById ("HiddenField_Site")! = null && document.getElementById ("HiddenField_Site")! = undefined && (document.getElementById ("HiddenField_Site"). value = r), n.value = n.nextElementSibling.childNodes [contenti , document.getElementById (t) .style.display = "none", document.getElementById ("ButtonSearch")! = null && document.getElementById ("ButtonSearch")! = undefined && document.getElementById ("ButtonSearch"). focus (), document .getElementById ("HiddenLocId")! = undefined && document.getElementById ("HiddenLocId")! = null && (document.getElementById ("HiddenLocId"). value = divId))), textClickFodes [txtElement.nextling.ch. id, n.id, document.getElementById (t))): SearchLocation (n, t) :( document.getElementById (t) .style.display = "none", document.getElementById (n.id) .focus () )} function RefreshData (n, t, i) {var r, u; resultPanel = n.nextElementSibling; resultPanel.innerHTML = "