<!--
	function imperialtometric(userinput) {			

	var cm;

	var meters;

	if(isNaN(userinput.feet.value)||isNaN(userinput.inches.value)){

		alert("Please enter numbers only");

		return false;

	}

	cm = ((userinput.feet.value * 30.48) + (userinput.inches.value * .0254) * 100);

	meters = (cm)/100;

	if(meters==0){

		alert("Please enter valid values into the boxes");

	}

	userinput.meters.value = meters;

	return false;

}
//-->