diff --git a/README.md b/README.md
index c581e8e..ee79efa 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ To configure the chat, just use the object passed on IASChat instantiation. *Bol
  - topbarColor: Color Chat topbar text and icons color
  - buttonBg: Color Show button background color
  - buttonColor: Color Show button text/icon color
+ - buttonIcon: String Image URI for the icon you want to add in the open button. SVG or PNG recommended, but all image types should work
  - inputBorderColor: Color Chat text input border bottom color
  - container: String Container for chat (*#identifier* or *.className*)
  - hashSign: String Symbol or string to add before url hash when chat open (Default: '?'. I.e.: url#existentHash**?**ias=true)
diff --git a/demo/index.html b/demo/index.html
index 3b78f74..0edf122 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -54,6 +54,7 @@ <h1>User side support</h1>
 			button: true,
 			// topbarBg: 'lightgrey',
 			// topbarColor: '#000',
+			// buttonIcon: 'http://simpleicon.com/wp-content/uploads/rocket.png',
 			// buttonBg: 'red',
 			// buttonColor: '#ccc',
 			// inputBorderColor: 'rgba(0, 0, 0, .2)',
diff --git a/dist/chat.js b/dist/chat.js
index 7f01ae0..371fa41 100644
--- a/dist/chat.js
+++ b/dist/chat.js
@@ -13,6 +13,7 @@ function IASChat(config) {
 	var topbarColor = config.topbarColor || textColor;
 	var buttonBg = config.buttonBg || mainColor;
 	var buttonColor = config.buttonColor || textColor;
+	var buttonIcon = config.buttonIcon || null;
 	var inputBorderColor = config.inputBorderColor || mainColor;
 	var defaultSupportName = config.defaultSupportName || 'Support chat';
 	var defaultSupportPic = config.defaultSupportPic || 'https://s3.amazonaws.com/uifaces/faces/twitter/robertovivancos/128.jpg';
@@ -43,6 +44,9 @@ function IASChat(config) {
 
 	var attatchment = null;
 
+	var lastHash = '';
+	var lastPage = '';
+
 	// Listen event submit
 	if(show) {
 		show.addEventListener('click', showIAS.bind(this));
@@ -60,12 +64,8 @@ function IASChat(config) {
 	// Set user
 	setUser(config);
 
-	// Check url hash visibility
-	if(visibilityUrlHash() === true) {
-		showIAS();
-	} else {
-		hideIAS();
-	}
+	// Detect hash change to update IAS visibility
+	hashChange();
 
 
 	return {
@@ -178,6 +178,16 @@ function IASChat(config) {
 			form.children[1].style.margin = '0 16px';
 			form.children[1].style.width = 'calc(100% - 88px)';
 		}
+
+		// If changed button icon
+		if(buttonIcon) {
+			var icon = document.createElement('img');
+			icon.style.width = '24px';
+			icon.style.height = '24px';
+			icon.setAttribute('src', buttonIcon);
+			document.getElementById('ias-show').removeChild(document.getElementById('ias-show').firstChild);
+			document.getElementById('ias-show').appendChild(icon);
+		}
 	}
 
 
@@ -366,15 +376,47 @@ function IASChat(config) {
 			} else {
 				window.location.hash += '#ias=true'; 
 			}
+
+			lastPage = window.location.href.split('#')[0]
+
+			setTimeout(hashChange, 300);
 		}
 	}
 
 	function remUrlHash() {
 		if(window.location.hash) {
-			if(window.location.hash.indexOf( hashSign + 'ias=true') !== -1) {
-				window.location.hash = window.location.hash.replace( hashSign + 'ias=true', ''); 
-			} else if(window.location.hash.indexOf('#ias=true') !== -1) {
-				window.location.hash = window.location.hash.replace('ias=true', ''); 
+
+			if(lastPage === window.location.href.split('#')[0] && (lastHash.indexOf( hashSign + 'ias=true') !== -1 || lastHash.indexOf('#ias=true') !== -1)) {
+				window.history.back();
+			} else {
+				if(window.location.hash.indexOf( hashSign + 'ias=true') !== -1) {
+					window.location.hash = window.location.hash.replace( hashSign + 'ias=true', ''); 
+				} else if(window.location.hash.indexOf('#ias=true') !== -1) {
+					window.location.hash = window.location.hash.replace('ias=true', ''); 
+				}
+			}
+		}
+	}
+
+	function hashChange() {
+
+		var isHash = visibilityUrlHash();
+
+		if(window.location.hash !== lastHash) {
+
+			lastHash = window.location.hash;
+
+			if(isHash) {
+				showIAS();
+			} else {
+				hideIAS();
+			}
+
+			setTimeout(hashChange, 300);
+
+		} else {
+			if(isHash) {
+				setTimeout(hashChange, 300);
 			}
 		}
 	}
diff --git a/js/chat.js b/js/chat.js
index c530723..ac0a7e1 100644
--- a/js/chat.js
+++ b/js/chat.js
@@ -13,6 +13,7 @@ function IASChat(config) {
 	var topbarColor = config.topbarColor || textColor;
 	var buttonBg = config.buttonBg || mainColor;
 	var buttonColor = config.buttonColor || textColor;
+	var buttonIcon = config.buttonIcon || null;
 	var inputBorderColor = config.inputBorderColor || mainColor;
 	var defaultSupportName = config.defaultSupportName || 'Support chat';
 	var defaultSupportPic = config.defaultSupportPic || 'https://s3.amazonaws.com/uifaces/faces/twitter/robertovivancos/128.jpg';
@@ -43,6 +44,9 @@ function IASChat(config) {
 
 	var attatchment = null;
 
+	var lastHash = '';
+	var lastPage = '';
+
 	// Listen event submit
 	if(show) {
 		show.addEventListener('click', showIAS.bind(this));
@@ -60,12 +64,8 @@ function IASChat(config) {
 	// Set user
 	setUser(config);
 
-	// Check url hash visibility
-	if(visibilityUrlHash() === true) {
-		showIAS();
-	} else {
-		hideIAS();
-	}
+	// Detect hash change to update IAS visibility
+	hashChange();
 
 
 	return {
@@ -178,6 +178,16 @@ function IASChat(config) {
 			form.children[1].style.margin = '0 16px';
 			form.children[1].style.width = 'calc(100% - 88px)';
 		}
+
+		// If changed button icon
+		if(buttonIcon) {
+			var icon = document.createElement('img');
+			icon.style.width = '24px';
+			icon.style.height = '24px';
+			icon.setAttribute('src', buttonIcon);
+			document.getElementById('ias-show').removeChild(document.getElementById('ias-show').firstChild);
+			document.getElementById('ias-show').appendChild(icon);
+		}
 	}
 
 
@@ -366,15 +376,47 @@ function IASChat(config) {
 			} else {
 				window.location.hash += '#ias=true'; 
 			}
+
+			lastPage = window.location.href.split('#')[0]
+
+			setTimeout(hashChange, 300);
 		}
 	}
 
 	function remUrlHash() {
 		if(window.location.hash) {
-			if(window.location.hash.indexOf( hashSign + 'ias=true') !== -1) {
-				window.location.hash = window.location.hash.replace( hashSign + 'ias=true', ''); 
-			} else if(window.location.hash.indexOf('#ias=true') !== -1) {
-				window.location.hash = window.location.hash.replace('ias=true', ''); 
+
+			if(lastPage === window.location.href.split('#')[0] && (lastHash.indexOf( hashSign + 'ias=true') !== -1 || lastHash.indexOf('#ias=true') !== -1)) {
+				window.history.back();
+			} else {
+				if(window.location.hash.indexOf( hashSign + 'ias=true') !== -1) {
+					window.location.hash = window.location.hash.replace( hashSign + 'ias=true', ''); 
+				} else if(window.location.hash.indexOf('#ias=true') !== -1) {
+					window.location.hash = window.location.hash.replace('ias=true', ''); 
+				}
+			}
+		}
+	}
+
+	function hashChange() {
+
+		var isHash = visibilityUrlHash();
+
+		if(window.location.hash !== lastHash) {
+
+			lastHash = window.location.hash;
+
+			if(isHash) {
+				showIAS();
+			} else {
+				hideIAS();
+			}
+
+			setTimeout(hashChange, 300);
+
+		} else {
+			if(isHash) {
+				setTimeout(hashChange, 300);
 			}
 		}
 	}