diff --git a/lib/autoitx.js b/lib/autoitx.js
new file mode 100644
index 0000000..625f47a
--- /dev/null
+++ b/lib/autoitx.js
@@ -0,0 +1,26 @@
+////////////////////////////////////////////////////////////////////////
+// AutoItX3.Control API
+////////////////////////////////////////////////////////////////////////
+
+var AutoItXObject = function() {
+    this.interface = null;
+
+    this.create = function() {
+        try {
+            this.interface = CreateObject("AutoItX3.Control");
+            return this;
+        } catch (e) {
+            console.error("AutoItXObject.create() ->", e.message);
+        }
+    };
+
+    this.getInterface = function() {
+        return this.interface;
+    };
+
+    this.create();
+};
+
+exports.create = function() {
+    return new AutoItXObject();
+};
diff --git a/lib/chrome.js b/lib/chrome.js
index 2c98d6b..cbf87e3 100644
--- a/lib/chrome.js
+++ b/lib/chrome.js
@@ -6,597 +6,621 @@ var SYS = require("lib/system");
 var FILE = require("lib/file");
 var HTTP = require("lib/http");
 var Websocket = require("lib/websocket");
+var AutoItX = require("lib/autoitx");
 
 // for remote debugging
 var pageEventId = 0;
 
 var ChromeObject = function() {
-	this.workingDirectory = SYS.getEnvString("PROGRAMFILES") + "\\Google\\Chrome\\Application";
-	this.binPath = SYS.getEnvString("PROGRAMFILES") + "\\Google\\:installedDir\\Application\\chrome.exe";
-	//this.processID = 0;
-	this.installedDir = "Chrome";
-	this.profileName = "Default";
-	this.userDataDir = null;
-	this.proxy = {
-		"protocol": "socks5",
-		"host": "127.0.0.1",
-		"port": 1080
-	};
-	this.inPrivate = false;
-	this.oAutoIt = null;
+    this.workingDirectory = SYS.getEnvString("PROGRAMFILES") + "\\Google\\Chrome\\Application";
+    this.binPath = SYS.getEnvString("PROGRAMFILES") + "\\Google\\:installedDir\\Application\\chrome.exe";
+    //this.processID = 0;
+    this.installedDir = "Chrome";
+    this.profileName = "Default";
+    this.userDataDir = null;
+    this.proxy = {
+        "protocol": "socks5",
+        "host": "127.0.0.1",
+        "port": 1080
+    };
+    this.inPrivate = false;
+    
+    // dependencies
+    this.oAutoIt = null;
 
-	// for remote debugging
-	this.debuggingPort = 0;
-	this.pageId = "";
-	this.ws = Websocket.create();
-	this.isAttached = false;
-	this.pageList = [];
+    // for remote debugging
+    this.debuggingPort = 0;
+    this.pageId = "";
+    this.ws = Websocket.create();
+    this.isAttached = false;
+    this.pageList = [];
 
-	this.create = function() {
-		try {
-			this.oAutoIt = CreateObject("AutoItX3.Control");
-		} catch (e) {
-			console.log("ChromeObject.create() -> " + e.message);
-		}
-	};
-
-	this.setBinPath = function(path) {
-		this.binPath = path;
+    this.create = function() {
+        this.oAutoIt = AutoItX.create().getInterface();
 		return this;
+    };
+
+    this.setBinPath = function(path) {
+        this.binPath = path;
+        return this;
+    };
+
+    this.setProfile = function(profileName, installedDir) {
+        this.profileName = (profileName == "Default" ? "Chrome" : profileName);
+        this.setInstalledDir(installedDir);
+        this.workingDirectory = this.workingDirectory.replace(":installedDir", this.installedDir);
+        this.binPath = this.binPath.replace(":installedDir", this.installedDir);
+        //this.binPath = this.binPath.replace(":installedDir", "Chrome");
+        return this;
+    };
+
+    this.setUserDataDir = function(dirname) {
+        if (dirname != null) {
+            this.userDataDir = dirname;
+        } else {
+            this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
+        }
+        return this;
+    };
+
+    this.setInstalledDir = function(dirname) {
+        if (dirname != null) {
+            this.installedDir = dirname;
+        }
+        return this;
+    };
+    
+    this.setProxy = function(obj) {
+        this.proxy = obj;
+        return this;
+    };
+
+    this.setProxyProtocol = function(s) {
+        this.proxy.protocol = s;
+        return this;
+    };
+
+    this.setProxyHost = function(s) {
+        this.proxy.host = s;
+        return this;
+    };
+
+    this.setProxyPort = function(n) {
+        this.proxy.port = n;
+        return this;
+    };
+    
+    this.setDebuggingPort = function(port) {
+        this.debuggingPort = port;
+        console.log("Debugging port setted: " + port);
+        return this;
+    }
+    
+    this.setPageId = function(s) {
+        this.pageId = s;
+    };
+
+    this.createShoutcut = function(url) {
+        if (!this.userDataDir) {
+            this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
+        }
+
+        var cmd = [
+            "cscript",
+            "app.js",
+            "shoutcut",
+            "chrome",
+            this.installedDir,
+        ];
+
+        // disable default browser check
+        cmd.push("--no-default-browser-check");
+
+        // disable popop blocking
+        cmd.push("--disable-popup-blocking");
+
+        // check incognito mode
+        if (this.inPrivate) {
+            cmd.push("--incognito");
+        }
+
+        // check debugging port
+        if (this.debuggingPort > 0) {
+            cmd.push("--remote-debugging-port=" + this.debuggingPort);
+        }
+
+        cmd.push("--profile-directory=\"" + this.profileName + "\"");
+        cmd.push("--user-data-dir=\"" + this.userDataDir + "\"");
+        cmd.push("\"" + url + "\"");
+
+        SHELL.createDesktopIcon("Chrome Prototype (" + this.installedDir + ")", cmd.join(' '), SYS.getCurrentScriptDirectory());
+    };
+
+    this.setInPrivate = function(flag) {
+        this.inPrivate = flag;
+        return this;
+    };
+
+    this.open = function(url) {
+        this.setProfile(this.profileName, this.installedDir);
+
+        // if the file does not exists, Check the 32bit installation folder again
+        if (!FILE.fileExists(this.binPath)) {
+            this.workingDirectory = SYS.getEnvString("PROGRAMFILES(X86)") + "\\Google\\Chrome\\Application";
+            this.binPath = SYS.getEnvString("PROGRAMFILES(X86)") + "\\Google\\:installedDir\\Application\\chrome.exe";
+            this.setProfile(this.profileName, this.installedDir);
+        }
+
+        // find profile
+        if (!FILE.fileExists(this.binPath)) {
+            console.error("ChromeObject.open() -> '" + this.profileName + "' profile does not exists. You have to create it.");
+            return this;
+        }
+
+        // create shoutcut to desktop
+        if (this.debuggingPort == 0) {
+            this.createShoutcut();
+        }
+
+        /*
+        var process;
+        while (this.processID == 0) {
+            try {
+                if (!this.userDataDir) {
+                    this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
+                }
+                var shell = SHELL.create().setWorkingDirectory(this.workingDirectory);
+                var process = shell.createProcess([
+                    "\"" + this.binPath + "\"",
+                    "--profile-directory=\"" + this.profileName + "\"",
+                    "--proxy-server=\"socks5://127.0.0.1:" + this.proxyPort + "\"",
+                    "--user-data-dir=\"" + this.userDataDir + "\"",
+                    "\"" + url + "\""
+                ].join(" "));
+                sleep(1500);
+                this.processID = process.ProcessID;
+                sleep(1500);
+                shell.release();
+            } catch (e) {
+                console.error("ChromeObject.open() -> " + e.message);
+                sleep(1500);
+            }
+        }
+        */
+
+        try {
+            // get user data directory
+            if (!this.userDataDir) {
+                this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
+            }
+
+            // connect to shell
+            var shell = SHELL.create();
+            shell.setWorkingDirectory(this.workingDirectory);
+
+            // initialize
+            var cmd = [];
+
+            // enable inPrivate (incognito) mode
+            if (this.inPrivate) {
+                cmd.push("--incognito");
+            }
+
+            // enable debugging port
+            if (this.debuggingPort > 0) {
+                cmd.push("--remote-debugging-port=" + this.debuggingPort);
+            }
+            
+            // disable default browser check
+            cmd.push("--no-default-browser-check");
+
+            // disable popop blocking
+            cmd.push("--disable-popup-blocking");
+
+            // set profile directory
+            cmd.push("--profile-directory=\"" + this.profileName + "\"");
+            
+            // set proxy configuration
+            if (this.proxy != null) {
+                console.log("Proxy enabled:", this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port);
+                cmd.push("--proxy-server=\"" + this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port + "\"");
+            }
+
+            // set user data directory
+            cmd.push("--user-data-dir=\"" + this.userDataDir + "\"");
+            
+            // set URL
+            cmd.push("\"" + url + "\"");
+            
+            // run
+            shell.runAs(this.binPath, cmd);
+            sleep(300);
+
+            // release shell
+            shell.release();
+        } catch (e) {
+            console.error("ChromeObject.open() -> ", e.message);
+            sleep(300);
+        }
+
+        return this;
+    };
+    
+    this.getPageList = function() {
+        var pageList = [];
+
+        if (this.debuggingPort > 0) {
+            try {
+                pageList = JSON.parse(HTTP.get("http://127.0.0.1:" + this.debuggingPort + "/json"));
+                this.pageList = pageList;
+                return pageList;
+            } catch (e) {
+                console.error("ChromeObject.getPageList() ->", e.message);
+                return this.getPageList();
+            }
+        } else {
+            console.error("Remote debugging unavailable");
+            return pageList;
+        }
+    };
+
+    this.getPageById = function(id) {
+        var pages = this.getPageList().filter(function(x) {
+            return (x.id = id);
+        });
+        return (pages.length > 0 ? pages[0] : null);
+    };
+    
+    this.getPagesByUrl = function(url) {
+        return this.getPageList().filter(function(x) {
+            return (x.url == url);
+        });
+    };
+
+    this.getPagesByTitle = function(title) {
+        return this.getPageList().filter(function(x) {
+            return (x.title == title);
+        });
+    };
+
+    this.sendPageRPC = function(method, params) {
+        var result = null;
+
+        try {
+            if (this.pageId != "") {
+                result = this.ws.send("ws://127.0.0.1:" + this.debuggingPort + "/devtools/page/" + this.pageId, JSON.stringify({
+                    "id": pageEventId,
+                    "method": method,
+                    "params": params
+                }));
+                pageEventId++;
+                console.info("ChromeObject().sendPageRPC() -> Sent");
+            } else {
+                var pageList = this.getPageList();
+                if (pageList instanceof Array && pageList.length > 0) {
+                    this.pageId = pageList[0].id;
+                    if (this.pageId != "") {
+                        result = this.sendPageRPC(method, params);
+                    } else {
+                        console.error("Got invaild list of pages");
+                    }
+                }
+            }
+        } catch (e) {
+            console.log("ChromeObject.sendPageRPC() -> " + e.message);
+        }
+
+        return result;
+    };
+
+    this.navigate = function(url) {
+        return this.sendPageRPC("Page.navigate", {
+            "url": url
+        });
+    };
+    
+    this.navigateEvaluately = function(url) {
+        return this.evaluate('location.href = "' + url + '"');
+    };
+
+    this.evaluate = function(expression) {
+        try {
+            return this.sendPageRPC("Runtime.evaluate", {
+                "expression": expression
+            });
+        } catch (e) {
+            console.error("ChromeObject.evaluate() -> " + e.message);
+        }
+    };
+
+    this.getEvaluatedValue = function(expression) {
+        try {
+            var response = this.evaluate(expression);
+            return JSON.parse(response).result.result.value;
+        } catch (e) {
+            console.error("ChromeObject.getEvaluatedValue() -> " + e.message);
+        }
+    };
+
+    this.close = function() {
+        return this.sendPageRPC("Browser.close", {});
+    };
+
+    this.terminate = function() {
+        try {
+            this.oAutoIt.WinKill(this.pageId);
+        } catch (e) {
+            console.error("ChromeObject.terminate() -> " + e.message);
+        }
+    };
+
+    this.focus = function() {
+        if (this.debuggingPort > 0) {
+            try {
+                // get current title
+                var _title = this.getTitle();
+
+                // implementation of focus()
+                this._focus();
+
+                // change webpage title to original
+                this.setTitle(_title);
+            } catch (e) {
+                console.error("ChromeObject._focus() -> " + e.message);
+            }
+        }
+    };
+    
+    this._focus = function() {
+        if (this.debuggingPort > 0) {
+            try {
+                // if page ID is empty
+                if (this.pageId == "") {
+                    var pageList = this.getPageList();
+                    if (pageList instanceof Array && pageList.length > 0) {
+                        this.pageId = pageList[0].id;
+                    }
+                }
+
+                // change webpage title for focusing window
+                this.setTitle(this.pageId);
+
+                // find window by title
+                var pageList = this.getPageList();
+                if (pageList.length > 0) {
+                    this.oAutoIt.WinActivate(this.pageId);
+                }
+            } catch (e) {
+                console.error("ChromeObject.focus() -> " + e.message);
+            }
+        }
+    };
+
+    this.scrollToBottom = function() {
+        return this.evaluate('window.scrollTo(0, document.body.scrollHeight || document.documentElement.scrollHeight)');
+    };
+
+    this.focusWithoutActivate = function() {
+        if (this.debuggingPort > 0) {
+            try {
+                // if page ID is empty
+                if (this.pageId == "") {
+                    var pageList = this.getPageList();
+                    if (pageList instanceof Array && pageList.length > 0) {
+                        this.pageId = pageList[0].id;
+                    }
+                }
+
+                // change webpage title for focusing window
+                this.setTitle(this.pageId);
+            } catch (e) {
+                console.error("ChromeObject.focusWithoutActivate() -> " + e.message);
+            }
+        }
+    };
+
+    this.autoAdjust = function(sX, sY) {
+        // get current title
+        var _title = this.getTitle();
+
+        // change webpage title
+        this.setTitle(this.pageId);
+
+        // adjust window position and size
+        var bX = Math.floor(sX / 6);
+        var bY = Math.floor(sY / 3);
+        var x = this.getRandomInt(0, bX);
+        var y = this.getRandomInt(0, bY);
+        var w = this.getRandomInt(bX * 3, sX - bX);
+        var h = this.getRandomInt(bY, sY - bY);
+        this.oAutoIt.WinMove(this.pageId, "", x, y, w, h);
+        
+        // change webpage title to original
+        this.setTitle(_title);
+    };
+
+    this.blur = function() {
+        return this.evaluate("window.blur()");
+    };
+    
+    this.downMouseWheel = function(times) {
+        if (this.debuggingPort > 0) {
+            try {
+                var pos = this.getScreenPosition();
+                this.oAutoIt.MouseMove(pos.x + 100, pos.y + 100);
+                this.oAutoIt.MouseWheel("down", times);
+            } catch (e) {
+                console.error("ChromeObject.downMouseWheel() -> " + e.message);
+            }
+        }
+    };
+
+    this.upMouseWheel = function(times) {
+        if (this.debuggingPort > 0) {
+            try {
+                var pos = this.getScreenPosition();
+                this.oAutoIt.MouseMove(pos.x + 100, pos.y + 100);
+                this.oAutoIt.MouseWheel("up", times);
+            } catch (e) {
+                console.error("ChromeObject.upMouseWheel() -> " + e.message);
+            }
+        }
+    };
+    
+    this.setTitle = function(title) {
+        if (this.debuggingPort > 0) {
+            for (var i = 0; i < 3; i++) {
+                this.evaluate('document.title = "' + title + '"');
+            }
+        }
+    };
+
+    this.getTitle = function() {
+        if (this.debuggingPort > 0) {
+            return this.getEvaluatedValue('document.title');
+        }
+    };
+
+    this.getScreenPosition = function() {
+        var result = this.getEvaluatedValue('(function() { return [window.screenX, window.screenY].join(","); })();');
+        var pos = result.split(',');
+        return {
+            "x": parseInt(pos[0]),
+            "y": parseInt(pos[1])
+        };
+    };
+
+    this.getPageHeight = function() {
+        var height = 0;
+
+        if (this.debuggingPort > 0) {
+            var result = this.getEvaluatedValue('(function(obj) { return Math.max(obj.scrollHeight, obj.clientHeight); })(document.querySelector("html"))');
+            height = parseInt(result);
+        }
+
+        return height;
+    };
+    
+    this.setIsAttached = function(isAttached) {
+        this.isAttached = isAttached;
+        return this;
+    };
+    
+    this.getRandomInt = function(min, max) {
+        min = Math.ceil(min);
+        max = Math.floor(max);
+        return Math.floor(Math.random() * (max - min + 1)) + min;
+    };
+    
+    this.checkDebuggingPort = function() {
+        var isChecked = false;
+        var isDone = false;
+
+        while (!isDone) {
+            try {
+                if (this.debuggingPort > 0) {
+                    var result = SHELL.exec("netstat -ano | findstr :" + this.debuggingPort);
+                    if (result.indexOf(":" + this.debuggingPort) > -1) {
+                        isChecked = true;
+                    }
+                }
+
+                isDone = true;
+            } catch(e) {
+                sleep(1);
+                console.error("ChromeObject.checkDebuggingPort() -> " + e.message);
+            }
+        }
+
+        return isChecked;
+    };
+
+    this.getCurrentUrl = function() {
+        var page = this.getPageById(this.pageId);
+        return page.url;
+    };
+
+    this.getCurrentDomain = function() {
+        return this.getEvaluatedValue('document.domain') || '';
+    };
+
+    this.triggerEvent = function(eventName, selector) {
+        if (selector.indexOf(':p(') < 0) {
+            if (eventName == 'click') {
+                return this.evaluate('document.querySelector("' + selector + '").click()');
+            } else {
+                return this.evaluate('document.querySelector("' + selector + '").dispatchEvent(new Event("' + eventName + '"))');
+            }
+        } else {
+            var probability = parseFloat(selector.substring(selector.indexOf('(') + 1, selector.indexOf(')')));
+            return this.evaluate('(function(obj, p) { var a = Array.from(obj).filter(function() { return (Math.random() < p); }); if(a.length > 0) a[0].click(); })(document.querySelectorAll("' + selector.substring(0, selector.indexOf(':')) + '"), ' + probability + ')');
+        }
+    };
+
+    this.scrollBySelector = function(selector, dx, dy) {
+        return this.evaluate('(function(rect, dx, dy) { window.scrollTo(rect.x + dx, rect.y + dy); })(document.querySelector("' + selector + '").getBoundingClientRect(), parseInt("' + (dx || 0) + '"), parseInt("' + (dy || 0) + '"))');
+    };
+
+    this.scrollBy = function(dx, dy) {
+        var dx = (typeof(dx) !== "undefined" ? dx : '0');
+        var dy = (typeof(dy) !== "undefined" ? dy : '0');
+        return this.evaluate('window.scrollBy(' + dx + ', ' + dy + ')');
+    };
+
+    this.reload = function() {
+        return this.sendPageRPC("Page.reload", {});
+    };
+
+    this.hasClass = function(seletctor, className) {
+        try {
+            var result = this.getEvaluatedValue('document.querySelector("' + seletctor + '").getAttribute("class")');
+            if (typeof(result) === "string") {
+                return (result.split(' ').indexOf(className) > -1);
+            } else {
+                return false;
+            }
+        } catch (e) {
+            console.error("ChromeObject.hasClass() -> " + e.message);
+        }
+    };
+
+    this.getAttribute = function(selector, attributeName) {
+        return this.getEvaluatedValue('document.querySelector("' + selector + '").getAttribute("' + attributeName + '")');
+    };
+
+    this.sendSpaceKey = function() {
+        this.oAutoIt.Send("{SPACE}");
+    };
+
+	this.setValue = function(selector, value) {
+		var s = encodeURIComponent(value);
+		return this.evaluate('document.querySelector("' + selector + '").value = decodeURIComponent("' + s + '")');
 	};
 
-	this.setProfile = function(profileName, installedDir) {
-		this.profileName = (profileName == "Default" ? "Chrome" : profileName);
-		this.setInstalledDir(installedDir);
-		this.workingDirectory = this.workingDirectory.replace(":installedDir", this.installedDir);
-		this.binPath = this.binPath.replace(":installedDir", this.installedDir);
-		//this.binPath = this.binPath.replace(":installedDir", "Chrome");
-		return this;
-	};
-
-	this.setUserDataDir = function(dirname) {
-		if (dirname != null) {
-			this.userDataDir = dirname;
-		} else {
-			this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
-		}
-		return this;
-	};
-
-	this.setInstalledDir = function(dirname) {
-		if (dirname != null) {
-			this.installedDir = dirname;
-		}
-		return this;
-	};
-	
-	this.setProxy = function(obj) {
-		this.proxy = obj;
-		return this;
-	};
-
-	this.setProxyProtocol = function(s) {
-		this.proxy.protocol = s;
-		return this;
-	};
-
-	this.setProxyHost = function(s) {
-		this.proxy.host = s;
-		return this;
-	};
-
-	this.setProxyPort = function(n) {
-		this.proxy.port = n;
-		return this;
-	};
-	
-	this.setDebuggingPort = function(port) {
-		this.debuggingPort = port;
-		console.log("Debugging port setted: " + port);
-		return this;
-	}
-	
-	this.setPageId = function(s) {
-		this.pageId = s;
-	};
-
-	this.createShoutcut = function(url) {
-		if (!this.userDataDir) {
-			this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
-		}
-
-		var cmd = [
-			"cscript",
-			"app.js",
-			"shoutcut",
-			"chrome",
-			this.installedDir,
-		];
-
-		// disable default browser check
-		cmd.push("--no-default-browser-check");
-
-		// disable popop blocking
-		cmd.push("--disable-popup-blocking");
-
-		// check incognito mode
-		if (this.inPrivate) {
-			cmd.push("--incognito");
-		}
-
-		// check debugging port
-		if (this.debuggingPort > 0) {
-			cmd.push("--remote-debugging-port=" + this.debuggingPort);
-		}
-
-		cmd.push("--profile-directory=\"" + this.profileName + "\"");
-		cmd.push("--user-data-dir=\"" + this.userDataDir + "\"");
-		cmd.push("\"" + url + "\"");
-
-		SHELL.createDesktopIcon("Chrome Prototype (" + this.installedDir + ")", cmd.join(' '), SYS.getCurrentScriptDirectory());
-	};
-
-	this.setInPrivate = function(flag) {
-		this.inPrivate = flag;
-		return this;
-	};
-
-	this.open = function(url) {
-		this.setProfile(this.profileName, this.installedDir);
-
-		// if the file does not exists, Check the 32bit installation folder again
-		if (!FILE.fileExists(this.binPath)) {
-			this.workingDirectory = SYS.getEnvString("PROGRAMFILES(X86)") + "\\Google\\Chrome\\Application";
-			this.binPath = SYS.getEnvString("PROGRAMFILES(X86)") + "\\Google\\:installedDir\\Application\\chrome.exe";
-			this.setProfile(this.profileName, this.installedDir);
-		}
-
-		// find profile
-		if (!FILE.fileExists(this.binPath)) {
-			console.error("ChromeObject.open() -> '" + this.profileName + "' profile does not exists. You have to create it.");
-			return this;
-		}
-
-		// create shoutcut to desktop
-		if (this.debuggingPort == 0) {
-			this.createShoutcut();
-		}
-
-		/*
-		var process;
-		while (this.processID == 0) {
-			try {
-				if (!this.userDataDir) {
-					this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
-				}
-				var shell = SHELL.create().setWorkingDirectory(this.workingDirectory);
-				var process = shell.createProcess([
-					"\"" + this.binPath + "\"",
-					"--profile-directory=\"" + this.profileName + "\"",
-					"--proxy-server=\"socks5://127.0.0.1:" + this.proxyPort + "\"",
-					"--user-data-dir=\"" + this.userDataDir + "\"",
-					"\"" + url + "\""
-				].join(" "));
-				sleep(1500);
-				this.processID = process.ProcessID;
-				sleep(1500);
-				shell.release();
-			} catch (e) {
-				console.error("ChromeObject.open() -> " + e.message);
-				sleep(1500);
-			}
-		}
-		*/
-
-		try {
-			if (!this.userDataDir) {
-				this.userDataDir = SHELL.getPathOfMyDocuments() + "\\UserData_Chrome_" + this.profileName;
-			}
-
-			var shell = SHELL.create();
-			shell.setWorkingDirectory(this.workingDirectory);
-			
-			var cmd = [];
-			
-			if (this.inPrivate) {
-				cmd.push("--incognito");
-			}
-
-			if (this.debuggingPort > 0) {
-				cmd.push("--remote-debugging-port=" + this.debuggingPort);
-			}
-
-			cmd.push("--profile-directory=\"" + this.profileName + "\"");
-			
-			if (this.proxy != null) {
-				console.log("--proxy-server=\"" + this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port + "\"");
-				cmd.push("--proxy-server=\"" + this.proxy.protocol + "://" + this.proxy.host + ":" + this.proxy.port + "\"");
-			}
-			
-			cmd.push("--user-data-dir=\"" + this.userDataDir + "\"");
-			cmd.push("\"" + url + "\"");
-			shell.runAs(this.binPath, cmd);
-
-			sleep(1500);
-			shell.release();
-		} catch (e) {
-			console.error("ChromeObject.open() -> " + e.message);
-			sleep(1500);
-		}
-
-		return this;
-	};
-	
-	this.getPageList = function() {
-		var pageList = [];
-
-		if (this.debuggingPort > 0) {
-			try {
-				pageList = JSON.parse(HTTP.get("http://127.0.0.1:" + this.debuggingPort + "/json"));
-				this.pageList = pageList;
-				return pageList;
-			} catch (e) {
-				console.error("ChromeObject.getPageList() -> " + e.message);
-				return this.getPageList();
-			}
-		} else {
-			console.error("Remote debugging unavailable");
-			return pageList;
-		}
-	};
-
-	this.getPageById = function(id) {
-		var pages = this.getPageList().filter(function(x) {
-			return (x.id = id);
-		});
-		return (pages.length > 0 ? pages[0] : null);
-	};
-	
-	this.getPagesByUrl = function(url) {
-		return this.getPageList().filter(function(x) {
-			return (x.url == url);
-		});
-	};
-
-	this.getPagesByTitle = function(title) {
-		return this.getPageList().filter(function(x) {
-			return (x.title == title);
-		});
-	};
-
-	this.sendPageRPC = function(method, params) {
-		var result = null;
-
-		try {
-			if (this.pageId != "") {
-				result = this.ws.send("ws://127.0.0.1:" + this.debuggingPort + "/devtools/page/" + this.pageId, JSON.stringify({
-					"id": pageEventId,
-					"method": method,
-					"params": params
-				}));
-				pageEventId++;
-				console.info("ChromeObject().sendPageRPC() -> Sent");
-			} else {
-				var pageList = this.getPageList();
-				if (pageList instanceof Array && pageList.length > 0) {
-					this.pageId = pageList[0].id;
-					if (this.pageId != "") {
-						result = this.sendPageRPC(method, params);
-					} else {
-						console.error("Got invaild list of pages");
-					}
-				}
-			}
-		} catch (e) {
-			console.log("ChromeObject.sendPageRPC() -> " + e.message);
-		}
-
-		return result;
-	};
-
-	this.navigate = function(url) {
-		return this.sendPageRPC("Page.navigate", {
-			"url": url
-		});
-	};
-	
-	this.navigateEvaluately = function(url) {
-		return this.evaluate('location.href = "' + url + '"');
-	};
-
-	this.evaluate = function(expression) {
-		try {
-			return this.sendPageRPC("Runtime.evaluate", {
-				"expression": expression
-			});
-		} catch (e) {
-			console.error("ChromeObject.evaluate() -> " + e.message);
-		}
-	};
-
-	this.getEvaluatedValue = function(expression) {
-		try {
-			var response = this.evaluate(expression);
-			return JSON.parse(response).result.result.value;
-		} catch (e) {
-			console.error("ChromeObject.getEvaluatedValue() -> " + e.message);
-		}
-	};
-
-	this.close = function() {
-		return this.sendPageRPC("Browser.close", {});
-	};
-
-	this.terminate = function() {
-		try {
-			this.oAutoIt.WinKill(this.pageId);
-		} catch (e) {
-			console.error("ChromeObject.terminate() -> " + e.message);
-		}
-	};
-
-	this.focus = function() {
-		if (this.debuggingPort > 0) {
-			try {
-				// get current title
-				var _title = this.getTitle();
-
-				// implementation of focus()
-				this._focus();
-
-				// change webpage title to original
-				this.setTitle(_title);
-			} catch (e) {
-				console.error("ChromeObject._focus() -> " + e.message);
-			}
-		}
-	};
-	
-	this._focus = function() {
-		if (this.debuggingPort > 0) {
-			try {
-				// if page ID is empty
-				if (this.pageId == "") {
-					var pageList = this.getPageList();
-					if (pageList instanceof Array && pageList.length > 0) {
-						this.pageId = pageList[0].id;
-					}
-				}
-
-				// change webpage title for focusing window
-				this.setTitle(this.pageId);
-
-				// find window by title
-				var pageList = this.getPageList();
-				if (pageList.length > 0) {
-					this.oAutoIt.WinActivate(this.pageId);
-				}
-			} catch (e) {
-				console.error("ChromeObject.focus() -> " + e.message);
-			}
-		}
-	};
-
-	this.scrollToBottom = function() {
-		return this.evaluate('window.scrollTo(0, document.body.scrollHeight || document.documentElement.scrollHeight)');
-	};
-
-	this.focusWithoutActivate = function() {
-		if (this.debuggingPort > 0) {
-			try {
-				// if page ID is empty
-				if (this.pageId == "") {
-					var pageList = this.getPageList();
-					if (pageList instanceof Array && pageList.length > 0) {
-						this.pageId = pageList[0].id;
-					}
-				}
-
-				// change webpage title for focusing window
-				this.setTitle(this.pageId);
-			} catch (e) {
-				console.error("ChromeObject.focusWithoutActivate() -> " + e.message);
-			}
-		}
-	};
-
-	this.autoAdjust = function(sX, sY) {
-		// get current title
-		var _title = this.getTitle();
-
-		// change webpage title
-		this.setTitle(this.pageId);
-
-		// adjust window position and size
-		var bX = Math.floor(sX / 6);
-		var bY = Math.floor(sY / 3);
-		var x = this.getRandomInt(0, bX);
-		var y = this.getRandomInt(0, bY);
-		var w = this.getRandomInt(bX * 3, sX - bX);
-		var h = this.getRandomInt(bY, sY - bY);
-		this.oAutoIt.WinMove(this.pageId, "", x, y, w, h);
-		
-		// change webpage title to original
-		this.setTitle(_title);
-	};
-
-	this.blur = function() {
-		return this.evaluate("window.blur()");
-	};
-	
-	this.downMouseWheel = function(times) {
-		if (this.debuggingPort > 0) {
-			try {
-				var pos = this.getScreenPosition();
-				this.oAutoIt.MouseMove(pos.x + 100, pos.y + 100);
-				this.oAutoIt.MouseWheel("down", times);
-			} catch (e) {
-				console.error("ChromeObject.downMouseWheel() -> " + e.message);
-			}
-		}
-	};
-
-	this.upMouseWheel = function(times) {
-		if (this.debuggingPort > 0) {
-			try {
-				var pos = this.getScreenPosition();
-				this.oAutoIt.MouseMove(pos.x + 100, pos.y + 100);
-				this.oAutoIt.MouseWheel("up", times);
-			} catch (e) {
-				console.error("ChromeObject.upMouseWheel() -> " + e.message);
-			}
-		}
-	};
-	
-	this.setTitle = function(title) {
-		if (this.debuggingPort > 0) {
-			for (var i = 0; i < 3; i++) {
-				this.evaluate('document.title = "' + title + '"');
-			}
-		}
-	};
-
-	this.getTitle = function() {
-		if (this.debuggingPort > 0) {
-			return this.getEvaluatedValue('document.title');
-		}
-	};
-
-	this.getScreenPosition = function() {
-		var result = this.getEvaluatedValue('(function() { return [window.screenX, window.screenY].join(","); })();');
-		var pos = result.split(',');
-		return {
-			"x": parseInt(pos[0]),
-			"y": parseInt(pos[1])
-		};
-	};
-
-	this.getPageHeight = function() {
-		var height = 0;
-
-		if (this.debuggingPort > 0) {
-			var result = this.getEvaluatedValue('(function(obj) { return Math.max(obj.scrollHeight, obj.clientHeight); })(document.querySelector("html"))');
-			height = parseInt(result);
-		}
-
-		return height;
-	};
-	
-	this.setIsAttached = function(isAttached) {
-		this.isAttached = isAttached;
-		return this;
-	};
-	
-	this.getRandomInt = function(min, max) {
-		min = Math.ceil(min);
-		max = Math.floor(max);
-		return Math.floor(Math.random() * (max - min + 1)) + min;
-	};
-	
-	this.checkDebuggingPort = function() {
-		var isChecked = false;
-		var isDone = false;
-
-		while (!isDone) {
-			try {
-				if (this.debuggingPort > 0) {
-					var result = SHELL.exec("netstat -ano | findstr :" + this.debuggingPort);
-					if (result.indexOf(":" + this.debuggingPort) > -1) {
-						isChecked = true;
-					}
-				}
-
-				isDone = true;
-			} catch(e) {
-				sleep(1);
-				console.error("ChromeObject.checkDebuggingPort() -> " + e.message);
-			}
-		}
-
-		return isChecked;
-	};
-
-	this.getCurrentUrl = function() {
-		var page = this.getPageById(this.pageId);
-		return page.url;
-	};
-
-	this.getCurrentDomain = function() {
-		return this.getEvaluatedValue('document.domain') || '';
-	};
-
-	this.triggerEvent = function(eventName, selector) {
-		if (selector.indexOf(':p(') < 0) {
-			if (eventName == 'click') {
-				return this.evaluate('document.querySelector("' + selector + '").click()');
-			} else {
-				return this.evaluate('document.querySelector("' + selector + '").dispatchEvent(new Event("' + eventName + '"))');
-			}
-		} else {
-			var probability = parseFloat(selector.substring(selector.indexOf('(') + 1, selector.indexOf(')')));
-			return this.evaluate('(function(obj, p) { var a = Array.from(obj).filter(function() { return (Math.random() < p); }); if(a.length > 0) a[0].click(); })(document.querySelectorAll("' + selector.substring(0, selector.indexOf(':')) + '"), ' + probability + ')');
-		}
-	};
-
-	this.scrollBySelector = function(selector, dx, dy) {
-		return this.evaluate('(function(rect, dx, dy) { window.scrollTo(rect.x + dx, rect.y + dy); })(document.querySelector("' + selector + '").getBoundingClientRect(), parseInt("' + (dx || 0) + '"), parseInt("' + (dy || 0) + '"))');
-	};
-
-	this.scrollBy = function(dx, dy) {
-		var dx = (typeof(dx) !== "undefined" ? dx : '0');
-		var dy = (typeof(dy) !== "undefined" ? dy : '0');
-		return this.evaluate('window.scrollBy(' + dx + ', ' + dy + ')');
-	};
-
-	this.reload = function() {
-		return this.sendPageRPC("Page.reload", {});
-	};
-
-	this.hasClass = function(seletctor, className) {
-		try {
-			var result = this.getEvaluatedValue('document.querySelector("' + seletctor + '").getAttribute("class")');
-			if (typeof(result) === "string") {
-				return (result.split(' ').indexOf(className) > -1);
-			} else {
-				return false;
-			}
-		} catch (e) {
-			console.error("ChromeObject.hasClass() -> " + e.message);
-		}
-	};
-
-	this.getAttribute = function(selector, attributeName) {
-		return this.getEvaluatedValue('document.querySelector("' + selector + '").getAttribute("' + attributeName + '")');
-	};
-
-	this.sendSpaceKey = function() {
-		this.oAutoIt.Send("{SPACE}");
-	};
-
-	this.create();
+    this.create();
 };
 
 exports.create = function() {
-	return new ChromeObject();
+    return new ChromeObject();
 };
 
 exports.start = function(url, proxyPort, profileName, userDataDir, installedDir) {
-	return (new ChromeObject())
-		.setProxyPort(proxyPort)
-		.setProfile(profileName, installedDir)
-		.setUserDataDir(userDataDir)
-		.open(url)
-	;
+    return (new ChromeObject())
+        .setProxyPort(proxyPort)
+        .setProfile(profileName, installedDir)
+        .setUserDataDir(userDataDir)
+        .open(url)
+    ;
 };
 
 exports.startWithDebugging = function(url, proxy, profileName, debuggingPort) {
-	return (new ChromeObject())
-		.setProxy(proxy)
-		.setProfile(profileName, null)
-		.setUserDataDir(null)
-		.setDebuggingPort(debuggingPort)
-		.open(url)
-	;
+    return (new ChromeObject())
+        .setProxy(proxy)
+        .setProfile(profileName, null)
+        .setUserDataDir(null)
+        .setDebuggingPort(debuggingPort)
+        .open(url)
+    ;
 };
 
 exports.VERSIONINFO = "Chrome Web Browser Debugging Interface (chrome.js) version 0.1";
diff --git a/lib/toolkit.js b/lib/toolkit.js
new file mode 100644
index 0000000..d36a82f
--- /dev/null
+++ b/lib/toolkit.js
@@ -0,0 +1,24 @@
+////////////////////////////////////////////////////////////////////////
+// WelsonJS.Toolkit API
+////////////////////////////////////////////////////////////////////////
+
+var ToolkitObject = function() {
+    this.interface = null;
+
+    this.create = function() {
+        try {
+            this.interface = CreateObject("WelsonJS.Toolkit");
+            return this;
+        } catch (e) {
+            console.error("ToolkitObject.create() ->", e.message);
+        }
+    };
+
+    this.getInterface = function() {
+        return this.interface;
+    };
+};
+
+exports.create = function() {
+    return new ToolkitObject();
+};