Javascript reset ul list -

I am making a list of requests based on results from an AJAX call. I want to search for specific requests so that the list can be recreated from search results, but once it is created, I can not get rid of the list How can I do this?

  onload = function () {initRequestList (URL); Click on $ ("#SearchSearch_btn") (function {document.getElementById ("requestList") innerHTML = ""; FillSearchParameters (); initRequestList (status)}). }; Function fillSearchParameters () {status = $ ("# status_txt"). Val (); }; Function initRequestList (if (s! == null) URL = "http: // localhost: 58510 / api / request /" + status; var requestList = document.getElementById ("requestList"); JQuery.support.cors = true; $ .ajax ({url: url, type: 'received', datatype: 'json', success: function (data, textStatus, XHR) {//console.log(data); $ .Each ($ (data) , Function (key, value) {var request = value; requestListItem = document.createElement ("li"); requestListItem.className = "lijstBlok"; var bold = document.createElement ("b"); br / document On request3 = document.createElement ("br"); on requestlele ("br"); on br3 = document.createElement ("br"); requestStatus = document.createTextNode (request.status); requestdd = document.createTextNode ("br"); Request .departuredate); bold.appen dChild (requestStatus); requestListItem.appendChild (bold); requestListItem.appendChild (br); requestListItem.appendChild (requestDd); requestListItem.appendChild (br3); var requestCity; (i for = 0; i & lt; Request. Dest inations.length; I ++) {if (i! == (request.destinations.length - 1)) {requestCity = document.createTextNode (request.destinations [i] .city + ","); RequestListItem.appendChild (requestCity); } Other {requestCity = document.createTextNode (request.destinations [i] .city); RequestListItem.appendChild (requestCity); }} RequestList.appendChild (requestListItem); }); }, Error: Work (xhr, textStatus, errorThrown) {console.log ('Operation Error'); }}); };  

HTML

  & lt; Body & gt; & Lt; Div id = "main" & gt; & Lt; Div id = "newRequestDiv" & gt; & Lt; Button ID = "newRequestbtn" type = "button" & gt; New request & lt; / Button & gt; & Lt; / Div & gt; & Lt; Br / & gt; & Lt; Div id = "requestsDiv" & gt; & Lt; Input type = "text" id = "status_txt" placeholder = "status" / & gt; & Lt; Button id = "status_btn" type = "button" & gt; Search & lt; / Button & gt; & Lt; ul id = "Request List" & gt; & Lt; / Ul & gt; & Lt; / Div & gt; & Lt; / Div & gt; & Lt; script src = "js / request dashboard. Js" & gt; & Lt; / Script & gt; & Lt; Script src = "js / Jkweri-Lkllklkjas" & gt; & Lt; / Script & gt;