function DoCal6MWD() {
	let txtAge;
	let txtHeight;
	let mc1=141.327, mc2=1.039, mc3=3.038;
	let fc1=233.994, fc2=1.815, fc3=2.632;
	let rObj = document.getElementById("calR6MWT");
	let mResult, fResult;
	
	txtAge = document.getElementById("txtAge").value;
	txtHeight = document.getElementById("txtHeight").value;
	
	mResult = mc1 - txtAge*mc2 + txtHeight*mc3;
	fResult = fc1 - txtAge*fc2 + txtHeight*fc3;
	
	rObj.innerHTML = "每6分鐘應走距離<br>男生：" + mResult.toFixed() + " 公尺<br>" + "女生：" + fResult.toFixed() + " 公尺<br>";
}