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!';
	}