// JavaScript Document
function CalculateWFM()
{
	if(document.getElementById('txtWeightWFM').value==''||isNaN(document.getElementById('txtWeightWFM').value))
	{
		alert('Please enter a valid weight');
		document.getElementById('txtWeightWFM').focus();
		return false;
	}
	if(document.getElementById('txtTimeWFM').value==''||isNaN(document.getElementById('txtTimeWFM').value))
	{
		alert('Please enter a valid time');document.getElementById('txtTimeWFM').focus();
		return false;
	}
	var hr;
	var kg;
	var cb;
	if(document.getElementById('selTimeWFM').value!=1)
	{
		hr=document.getElementById('txtTimeWFM').value/60;
	}
	else
	{
		hr=document.getElementById('txtTimeWFM').value;
	}
	if(document.getElementById('selWeightWFM').value!=1)
	{
		kg=document.getElementById('txtWeightWFM').value*.45359237;
	}
	else
	{
		kg=document.getElementById('txtWeightWFM').value;
	}
	if(kg>182||kg<22)
	{
		alert('Please enter a valid weight');
		document.getElementById('txtWeightWFM').focus();
		return false;
	}
	if(hr>12||hr<=0)
	{
		alert('Please enter a valid time');
		document.getElementById('txtTimeWFM').focus();
		return false;
	}
	cb=Math.round((kg*document.getElementById('selPaceWFM').value)*hr);
	document.getElementById('divResultWFM').innerHTML='You burned '+cb+' calories!';
}