var factor=0,wt=0,age=0,cl=0,gender="",wtt="";

function creatinine(wt,factor,age,sc)
{
  cl=factor*wt*(140-age)/(72*sc);
  return cl;
}
function process() {
	if(nonBlank(document.creat.age,"Please enter your Age"))
	{
		if(!goodInt(document.creat.age,"Please enter your Age using numeric value"))
		{return false;}	
	}
	else{return false;}
	if(nonBlank(document.creat.weight,"Please enter your Weight"))
	{
		if(!goodInt(document.creat.weight,"Please enter your Weight using numeric value"))
		{return false;}	
	}
	else{return false;}
	if(nonBlank(document.creat.sc,"Please enter your Serum Creatinine Level"))
	{
		if(!goodFloat(document.creat.sc,"Please enter your Serum Creatinine using numeric or decimal value. ex : 1.25"))
		{return false;}	
	}
	else{return false;}
      if (gender=="female"){
        factor=0.85;}
      else{
        factor=1.0;}
      wt=document.creat.weight.value;
      if(wtt=="Lb"){
      wt=wt*0.4536176;
      }
      age=document.creat.age.value;
      sc=document.creat.sc.value;
      cl=creatinine(wt,factor,age,sc);
      cll=""+cl;
      no=cll.indexOf('.');
      if (no==-1){no=cll.length-3;}
      cl=cll.substring(0,no+3);
//      document.creat.cl.value=cl;
	document.getElementById("icon").bgColor="#74B71B";
	document.getElementById("message").innerHTML='<font size="2" color="#737373"><strong>Creatinine Clearance: </strong></font><font color=red>'+cl.toString()+'&nbsp;ml/min</font>';
	document.getElementById("message").bgColor="#FFFFFF";
	document.getElementById("nc").innerHTML='<font size="2">&nbsp;Normal Value (in ml/min) between:</font> 91 and 130<br>';  
		  
      return true;
      }