Refactoring http/main into http router

cmd/http/public/transactions.html

@@ -17,11 +17,11 @@
       }
       function callback(responseBody, responseStatus) {
       }
-      var f = String(window.location).split("/transactions.html")[1]
-      if (!f) {
-        f = "/ledger.dat"
-      }
-      f = "." + f
+      //var f = String(window.location).split("/transactions.html")[1]
+      //if (!f) {
+      //  f = "/ledger.dat"
+      //}
+      //f = "." + f
       function init() {
         const zeroPad = (num, places) => String(num).padStart(places, '0')
         var d = new Date()
@@ -30,10 +30,10 @@
         var iframe = document.getElementsByTagName("iframe")[0]
         iframe.src = iframe.src.replace("YYYY-MM", replacement)
 
-        load(f)
+        load()
       }
-      function load(f) {
-        http("GET", "/api/transactions?f="+f, (body, status) => {
+      function load() {
+        http("GET", "/api/transactions" /*?f="+f*/, (body, status) => {
           var d = JSON.parse(body)
           loadBalances(d.balances)
           loadDeltas(d.deltas)
@@ -70,7 +70,7 @@
         document.getElementById("reg").innerHTML = result
       }
       function setLastNLines(form) {
-        http("PUT", "/api/lastnlines?f="+f, (body, status) => {
+        http("PUT", "/api/lastnlines" /*?f="+f*/, (body, status) => {
           if (status == 205) {
             init()
           }
@@ -79,7 +79,7 @@
       }
       function loadLastNLines(lastNLines) {
         var result = `<form onsubmit="setLastNLines(this); return false;" action="#">`
-        result += `  <div>${f}</div>`
+        //result += `  <div>${f}</div>`
         result += `  <textarea id="lastNLinesTextarea" name="lastNLines" style="height: 30em;">`
         for (var k in lastNLines) {
           result += lastNLines[k] + "\n"