<!-- Begin
function checkMetro(field, i) {

if (i == 0) { //All areas.
if (field[0].checked == true) {
for (i = 1; i <= 37; i++)
field[i].checked = true;
}
else 
if (field[0].checked == false) {
for (i = 1; i <= 37; i++)
field[i].checked = false;
    }
  }
else{
field[0].checked = false;
}
}

function checkMetro1(field, i) {
if (i == 1) { //
if (field[1].checked == true) {
for (i = 2; i <= 11; i++)
field[i].checked = true;
}
else 
if (field[1].checked == false) {
for (i = 2; i <= 11; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[1].checked = false;
}
}

function checkMetro2(field, i) {
if (i == 12) { 
if (field[12].checked == true) {
for (i = 13; i <= 15; i++)
field[i].checked = true;
}
else 
if (field[12].checked == false) {
for (i =13 ; i <= 15; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[12].checked = false;
}
}

function checkMetro3(field, i) {
if (i == 16) { 
if (field[16].checked == true) {
for (i = 17; i <= 20; i++)
field[i].checked = true;
}
else 
if (field[16].checked == false) {
for (i = 17; i <= 20; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[16].checked = false;
}
}

function checkMetro4(field, i) {
if (i == 21) { 
if (field[21].checked == true) {
for (i = 22; i <= 24; i++)
field[i].checked = true;
}
else 
if (field[21].checked == false) {
for (i = 22; i <= 24; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[21].checked = false;
}
}
function checkMetro5(field, i) {
if (i == 25) { 
if (field[25].checked == true) {
for (i = 26; i <= 27; i++)
field[i].checked = true;
}
else 
if (field[25].checked == false) {
for (i = 26; i <= 27; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[25].checked = false;
}
}
function checkMetro6(field, i) {
if (i == 28) { 
if (field[28].checked == true) {
for (i = 29; i <= 32; i++)
field[i].checked = true;
}
else 
if (field[28].checked == false) {
for (i = 29; i <= 32; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[28].checked = false;
}
}

function checkMetro7(field, i) {
if (i == 33) { 
if (field[33].checked == true) {
for (i = 34; i <= 37; i++)
field[i].checked = true;
}
else 
if (field[33].checked == false) {
for (i = 34; i <= 37; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[33].checked = false;
}
}


function checkPr(field, i) {
if (i == 0) { 
if (field[0].checked == true) {
for (i = 1; i <= 6; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}
function checkBd(field, i) {
if (i == 0) { //Bedroom
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}

function checkBt(field, i) {
if (i == 0) { //Bath
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}
//  End -->