diff --git a/2017-hellojs_overflow-james.js b/2017-hellojs_overflow-james.js
new file mode 100644
index 0000000..c76eda6
--- /dev/null
+++ b/2017-hellojs_overflow-james.js
@@ -0,0 +1,27 @@
+function getBMI(height,weight) {
+	return weight/Math.pow(height,2);
+}
+function getMessage(height, weight){
+	var bmi = getBMI(height, weight);
+	console.log("bmi = " + bmi);
+	if(bmi < 18.5) {
+		console.log('體重過輕');
+	}
+	else if(18.5 <= bmi && bmi < 24) {
+		console.log('正常範圍');
+	}
+	else if(24<= bmi && bmi < 27) {
+		console.log('過重');
+	}
+	else if(27<= bmi && bmi < 30) {
+		console.log('輕度肥胖');
+	}
+	else if(30<= bmi && bmi < 35) {
+		console.log('中度肥胖');
+	}
+	else if(35<= bmi) {
+		console.log('重度肥胖');
+	}
+}
+//getBMI(1.55,52);
+getMessage(1.55,52);
\ No newline at end of file