function changestlb (obj) {
	obj.elements['kg'].value=Math.round((Number(obj.elements['st'].value * 14) + Number(obj.elements['lb'].value)) / 2.2) 
}
function changekg (obj) {
  lbs = obj.elements['kg'].value * 2.2
  obj.elements['st'].value = Math.floor(lbs / 14)
  obj.elements['lb'].value = Math.round(lbs % 14)
}
function changeftin (obj) {
  obj.elements['m'].value=Math.round((Number(obj.elements['ft'].value * 12) + Number(obj.elements['ft'].value)) * 2.54)  /100
}
function changem (obj) {
  vinch = obj.elements['m'].value/0.0254
  obj.elements['ft'].value = Math.floor(vinch / 12)
  obj.elements['ft'].value = Math.round(vinch % 12)
}
function WhatsBMI (obj) {
  BMIVal = Math.round(obj.elements['kg'].value / (obj.elements['m'].value * obj.elements['m'].value) * 10) /10;
  BMI.innerText= BMIVal;
  //bestkg = obj.elements['m'].value * obj.elements['m'].value * 25
  //ideal.innerText = Math.round(bestkg*10) /10;
  //bestlbs= bestkg * 2.2;
  //idealst.innerText = Math.floor(bestlbs / 14);
  //ideallb.innerText = Math.round(bestlbs % 14);
/*
  for (i=1; i<7; i++) {
    eval('I'+i+'.bgColor="white"');
  }
  if (BMIVal < 18) I1.bgColor='#ffff00';
  if (BMIVal >= 18 && BMIVal <25) I2.bgColor='#9966FF';
  if (BMIVal >= 25 && BMIVal <30) I3.bgColor='#9966FF';
  if (BMIVal >= 30 && BMIVal <35) I4.bgColor='#FF9933';
  if (BMIVal >= 35 && BMIVal <50) I5.bgColor='#CC3300';
  if (BMIVal >= 50) I6.bgColor='red';*/
}

// ============================== print links =======================================

function ObesityPrint() {
	var london = '<a href="print/print_obesity.htm" target="_blank">Morbid Obesity/Bariatric Surgery indications - Printable version</a>';
	document.write(london)
}

function LapaPrint() {
	var london = '<a href="print/print_obesity_surgery_laparoscopic_gastric_banding.htm" target="_blank">Laparoscopic Gastric Banding - Printable version</a>';
	document.write(london)
}

function RouxPrint() {
	var london = '<a href="print/print_obesity_surgery_roux_en_Y_gastric_bypass.htm" target="_blank">Laparoscopic gastric bypass - Printable version</a>';
	document.write(london)
}

function DuodenalPrint() {
	var london = '<a href="print/print_obesity_surgery_duodenal_switch.htm" target="_blank">Laparoscopic duodenal switch - Printable version</a>';
	document.write(london)
}

function ConsiderPrint() {
	var london = '<a href="print/print_obesity_surgery_things_to_consider.htm" target="_blank">Bariatric Surgery for morbid obesity (things to consider) - Printable version</a>';
	document.write(london)
}

function OpenPrint() {
	var london = '<a href="print/print_obesity_surgery_laparoscopic_or_open.htm" target="_blank">Obesity Surgery - Printable version</a>';
	document.write(london)
}

function HandsPrint() {
	var london = '<a href="print/print_are_you_in_safe_hands.htm" target="_blank">Obesity Surgery - Are you in safe hands? - Printable version</a>';
	document.write(london)
}

function HospitalPrint() {
	var london = '<a href="print/print_hospitals.htm" target="_blank">Obesity surgery – Hospitals - Printable version</a>';
	document.write(london)
}

// ============================== emails ============================================

function ShowEmail(user, domain, anchor) {
	var OutText = '';
	OutText += '<a href="mailto:' + user + '@' + domain + '">';
	if (anchor != '') OutText += anchor;
	else OutText += user + '@' + domain;
	OutText  += '</a>';
	document.write(OutText);
}

function ShowEmailBold(user, domain, anchor) {
	var OutText = '';
	OutText += '<a href="mailto:' + user + '@' + domain + '" class="email_bold">';
	if (anchor != '') OutText += anchor;
	else OutText += user + '@' + domain;
	OutText  += '</a>';
	document.write(OutText);
}