function compute(form) {
 
  
  
	
	if (form.height.value == "")
	{
	alert("Enter the height in inches.");
	}

	if (form.age.value == "")
	{
	alert("Enter the age in years.");
	}


	
	if(form.height.value > 0 ) {
	form.peak.value= Math.round((((form.height.value*0.0254*3.72)+2.24)-(form.age.value*0.03))*60);

	}
	
	
		
		
		else {
		
		form.peak.value = "";
		 
		 }

	
	}
	
	 function ClearForm(form)  {
	 form.height.value= "";
	 form.age.value= "";
	 form.peak.value = "";
	 }