Added reading last tool

Frontend/assets/scripts/frame.js

@@ -1,5 +1,45 @@
 
+
+
+const tools = new Map();
+
+
+
+
+/**
+ * This functions imports other js file. I hate this solution, but other didn't work.
+ * 
+ * @function
+ * @name importScript
+ * @kind function
+ * @param {any} url
+ * @returns {void}
+ */
+function importScript(url) {
+    var script = document.createElement("script");  // create a script DOM node
+    script.src = url;  // set its src to the provided URL
+    document.head.appendChild(script);
+}
+
+/**
+ * Function called after page is loaded
+ * 
+ * @function
+ * @name init
+ * @kind function
+ * @returns {void}
+ */
 function init() {
+    importScript("/assets/scripts/dyn_host.js");
+    
+    tools.set("xpath", "tools/xpath.html");
+    tools.set("xsd", "tools/xsd.html");
+    tools.set("xslt", "tools/xslt.html");
+    tools.set("xmlform", "tools/xmlFormatter.html");
+    tools.set("jsonform", "tools/jsonFormatter.html");
+    tools.set("mock", getMockHost());
+
+    loadLastPage();
     changeActiveTools('xmlTool', 'XML');
 }
 
@@ -34,4 +74,15 @@ function changeActiveTools(activeClass, activeCategoryButton) {
             categories[i].classList.remove("active")
         }
     }
+}
+
+function changeTool(tool) {
+    const url = tools.get(tool);
+    localStorage.setItem("lastPage", tool);
+    document.getElementById("iframe").src = tools.get(lastPage);
+}
+
+function loadLastPage() {
+    const lastPage = localStorage.getItem("lastPage");
+    document.getElementById("iframe").src = tools.get(lastPage);
 }