												<!---hide from old browsers--->
	<!-- Copyright 2000 by FOCUS IT/Mark Curran,MD-->
  <!-- This script may be distributed only with the above copyright notice intact -->
   
   	 function Fmt(x) { 
var v
if(x>=0) { v=''+(x+0.00005) } else { v=''+(x-0.00005) }

return v.substring(0,v.indexOf('.')+3) 
}
   
   
   function compute(form) {
  

    var age2 = (form.age.value*form.age.value);
	var age3 = (form.age.value*form.age.value*form.age.value);
	
	if (form.age.value == "")
	{
	alert("Enter the age in weeks");
	
	}

	 





	if(form.age.value > 0 ) {
	
	form.rds.value= Fmt((.0603*age3-5.5368*age2+159.75*form.age.value-1381.7));
	form.sepsis.value= Fmt((-.0154*age3+1.7692*age2-68.58*form.age.value+896.5));
	
	 if(form.age.value > 36 ) {
	
	form.sepsis.value=0;
	
	}
	if(form.age.value < 27 ) {
	
	form.sepsis.value=Fmt((-8.7*age2+469.05*form.age.value-6283));
	
	} 
	 
	
	
	form.nec.value= Fmt((.0359*age3-3.4465*age2+107.58*form.age.value-1083));

	if(form.age.value > 34.5 ) {
	
	form.nec.value=0;
	
	}
	form.ivh.value=Fmt((-.035*age3+3.7251*age2-131.73*form.age.value+1546));
	if(form.age.value > 30.5 ) 
	{
	
	form.ivh.value=0;
	
	}
if(form.age.value > 38 ) 
	{
	
	form.rds.value=0;
	
	}
	if (form.age.value <24.5)
	{
	 form.age.value= "";
	 form.rds.value= "";
	 form.nec.value = "";
	 form.ivh.value = "";
	 form.sepsis.value = "";
	
	}

	}		
				
				  
		
		
		else {
		var age2 = "";
		var age3 = "";
		form.rds.value = "";
		form.nec.value = "";
		form.ivh.value = "";
		form.sepsis.value = "";
		 }

	
	}
	  
	 function ClearForm(form)  {
	 form.age.value= "";
	 form.rds.value= "";
	 form.nec.value = "";
	 form.ivh.value = "";
	 form.sepsis.value = "";
	 }
	 <!---done hiding from old browsers-->