diff --git a/README b/README
index b7578cb..2925a05 100644
--- a/README
+++ b/README
@@ -1,4 +1,7 @@
-This example shows how you can create a QR Code PNG using Javascript and HTML5.
+支持中文
+
+Demo：
+https://chrome.google.com/webstore/detail/sweet-qr-code-maker/hejblflceieoemjadbnlpplaajbneedn
 
 Notes:
 ---
diff --git a/qrcode.js b/qrcode.js
index 41afbc4..a40853a 100644
--- a/qrcode.js
+++ b/qrcode.js
@@ -20,7 +20,7 @@
 
 function QR8bitByte(data) {
 	this.mode = QRMode.MODE_8BIT_BYTE;
-	this.data = data;
+	this.data = this.toUTF8(data);
 }
 
 QR8bitByte.prototype = {
@@ -34,6 +34,26 @@ QR8bitByte.prototype = {
 			// not JIS ...
 			buffer.put(this.data.charCodeAt(i), 8);
 		}
+	},
+	
+	toUTF8 : function(str) {
+	    var out, i, len, c;
+	    out = "";
+	    len = str.length;
+	    for(i = 0; i < len; i++) {
+		c = str.charCodeAt(i);
+		if ((c >= 0x0001) && (c <= 0x007F)) {
+		    out += str.charAt(i);
+		} else if (c > 0x07FF) {
+		    out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
+		    out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));
+		    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
+		} else {
+		    out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));
+		    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
+		}
+	    }
+	    return out;
 	}
 };