Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

54_Letter/javascript/letter.js

@@ -0,0 +1,91 @@
+// LETTER
+//
+// Converted from BASIC to Javascript by Oscar Toledo G. (nanochess)
+//
+
+function print(str)
+{
+    document.getElementById("output").appendChild(document.createTextNode(str));
+}
+
+function input()
+{
+    var input_element;
+    var input_str;
+    
+    return new Promise(function (resolve) {
+                       input_element = document.createElement("INPUT");
+                       
+                       print("? ");
+                       input_element.setAttribute("type", "text");
+                       input_element.setAttribute("length", "50");
+                       document.getElementById("output").appendChild(input_element);
+                       input_element.focus();
+                       input_str = undefined;
+                       input_element.addEventListener("keydown", function (event) {
+                                                      if (event.keyCode == 13) {
+                                                      input_str = input_element.value;
+                                                      document.getElementById("output").removeChild(input_element);
+                                                      print(input_str);
+                                                      print("\n");
+                                                      resolve(input_str);
+                                                      }
+                                                      });
+                       });
+}
+
+function tab(space)
+{
+    var str = "";
+    while (space-- > 0)
+        str += " ";
+    return str;
+}
+
+// Main program
+async function main()
+{
+    print(tab(33) + "LETTER\n");
+    print(tab(15) + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY\n");
+    print("\n");
+    print("\n");
+    print("\n");
+    print("LETTER GUESSING GAME\n");
+    print("\n");
+    print("I'LL THINK OF A LETTER OF THE ALPHABET, A TO Z.\n");
+    print("TRY TO GUESS MY LETTER AND I'LL GIVE YOU CLUES\n");
+    print("AS TO HOW CLOSE YOU'RE GETTING TO MY LETTER.\n");
+    while (1) {
+        l = 65 + Math.floor(26 * Math.random());
+        g = 0;
+        print("\n");
+        print("O.K., I HAVE A LETTER.  START GUESSING.\n");
+        while (1) {
+            
+            print("\n");
+            print("WHAT IS YOUR GUESS");
+            g++;
+            str = await input();
+            a = str.charCodeAt(0);
+            print("\n");
+            if (a == l)
+                break;
+            if (a < l) {
+                print("TOO LOW.  TRY A HIGHER LETTER.\n");
+            } else {
+                print("TOO HIGH.  TRY A LOWER LETTER.\n");
+            }
+        }
+        print("\n");
+        print("YOU GOT IT IN " + g + " GUESSES!!\n");
+        if (g > 5) {
+            print("BUT IT SHOULDN'T TAKE MORE THAN 5 GUESSES!\n");
+        } else {
+            print("GOOD JOB !!!!!\n");
+        }
+        print("\n");
+        print("LET'S PLAY AGAIN.....");
+    }
+}
+
+main();