fix problems discovered with jslint

pd/nw/dialog_iemgui.html

@@ -346,9 +346,10 @@ function substitute_space(arg) {
 }
 
 function strip_problem_chars(arg) {
-    var problem_chars = [";", ",", "{", "}", "\\"];
-    var ret = arg;
-    for(var i = 0; i < problem_chars.length; i++) {
+    var problem_chars = [";", ",", "{", "}", "\\"],
+        ret = arg,
+        i;
+    for(i = 0; i < problem_chars.length; i++) {
         ret = ret.split(";").join("");
     }
     return ret;

pd/nw/dialog_prefs.html

@@ -507,7 +507,7 @@ function audio_prefs_callback(attrs) {
     document.getElementById("blocksize").value = get_attr("blocksize", attrs);
     document.getElementById("advance").value = get_attr("advance", attrs);
 
-    var callback = get_attr("cancallback", attrs);
+    callback = get_attr("cancallback", attrs);
     //show the checkbox if the API allows
     if (callback !== -1) {
         document.getElementById("callback_container")
@@ -594,10 +594,11 @@ function tr_text(id) {
 
 // Stop-gap translator
 function translate_form() {
-    var i;
-    var elements = document.querySelectorAll("[data-i18n]");
+    var elements = document.querySelectorAll("[data-i18n]"),
+        data,
+        i;
     for (i = 0; i < elements.length; i++) {
-        var data = elements[i].dataset.i18n;
+        data = elements[i].dataset.i18n;
         if (data.slice(0,7) === "[title]") {
             elements[i].title = l(data.slice(7));
         } else {
@@ -608,8 +609,8 @@ function translate_form() {
 
 function populate_form(attr_array) {
     // First, let's put the translated text for the form labels:
-
-    for(var i = 0; i < attr_array.length; i+=2) {
+    var i;
+    for(i = 0; i < attr_array.length; i+=2) {
         // Unhide the span with the class with the same name as the id
         var prop_group = document.getElementsByClassName(attr_array[i])[0];
         if (prop_group !== undefined) {

pd/nw/dialog_search.html

@@ -28,10 +28,11 @@ var doc_id = 0;
 
 // Stop-gap translator
 function translate_form() {
-    var i;
-    var elements = document.querySelectorAll("[data-i18n]");
+    var elements = document.querySelectorAll("[data-i18n]"),
+        data,
+        i;
     for (i = 0; i < elements.length; i++) {
-        var data = elements[i].dataset.i18n;
+        data = elements[i].dataset.i18n;
         if (data.slice(0,7) === "[title]") {
             elements[i].title = l(data.slice(7));
         } else {
@@ -67,7 +68,6 @@ function add_doc_to_index(filename, data) {
         //"body": big_line,
         "path": filename
     });
-    
 }
 
 function read_file(err, filename, stat) {